Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.36% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-40930High confidence
LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body
pnggroup · libpng
Official source article: GitHub GHSA-C4V6-GXRQ-6G2X ↗. Check the applicable product and release in the original source.
5.4MediumCVSS 3.1
Scheduled
Patch availableMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Medium, unchanged from published severity.unchanged
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict the affected network interface to trusted sources where business-safe.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs pnggroup libpng and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Distribution package intelligence
7 package statesRelease-specific package status
Alpine, Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Alpine v3.23v3.23 · main | libpng | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.6.58-r1 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.22v3.22 · main | libpng | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.6.59-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.21v3.21 · main | libpng | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.6.59-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Debian trixietrixie · source | libpng1.6 | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.6.37-4 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian bookwormbookworm · source | libpng1.6 | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.6.37-4 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian forkyforky · source | libpng1.6 | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.6.37-4 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian sidsid · source | libpng1.6 | Vendor fix publishedDebian records a fixed source-package version for this release. | 1.6.37-4 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
Direct vendor intelligence
1 currentAuthoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
CVE-2026-40930 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitylibpng: libpng: Data integrity and availability impact due to improper APNG chunk handling
The vendor explicitly identifies these products as affected by this CVE.
- java-1.8.0-openjdk-portable.src as a component of Red Hat build of OpenJDK 1.8
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 1.8
- java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 1.8
- java-21-openjdk.src as a component of Red Hat build of OpenJDK 1.8
- java-11-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS
- java-11-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS
- java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 11 ELS
- java-21-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS
- java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS
- java-17-openjdk-portable.src as a component of Red Hat build of OpenJDK 17
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 17
- Summary
- A flaw was found in libpng, a library used for processing PNG (Portable Network Graphics) image files. In version 1.8.0, a remote attacker could provide a specially crafted APNG (Animated Portable Network Graphics) file. This flaw allows attacker-controlled data within an ignored chunk to be reinterpreted as a new chunk header, leading to a low impact on data integrity and availability. This could result in unexpected application behavior or a denial of service.
- Remediation
- For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Patch available01
What, why and how
LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.
What
LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.
Why
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.
Why
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- a network path → Interpretation Conflict → cause the confidentiality, integrity or availability impact described by the vendor
- Attack surface
- Network
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- Required interaction required
- Attack complexity
- Low: no specialised conditions are recorded
- Security boundary
- Unchanged: impact remains within the vulnerable component's security authority
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-436 ↗
CWE-436: Interpretation Conflict. Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:LCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.ILowIntegrity impact: A successful attack can cause a limited loss.ALowAvailability impact: A successful attack can cause a limited loss.- Post-exploitation / living off the land
- No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Patch available
- Affected
- java-1.8.0-openjdk-portable.src as a component of Red Hat build of OpenJDK 1.8
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 1.8
- java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 1.8
- java-21-openjdk.src as a component of Red Hat build of OpenJDK 1.8
- java-11-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS
- java-11-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS
- java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 11 ELS
- java-21-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS
- java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS
- java-17-openjdk-portable.src as a component of Red Hat build of OpenJDK 17
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 17
- java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 17
- java-21-openjdk.src as a component of Red Hat build of OpenJDK 17
- java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 17
- java-17-openjdk.src as a component of Red Hat build of OpenJDK 21
- java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 21
- java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 21
- java-21-openjdk.src as a component of Red Hat build of OpenJDK 21
- java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 21
- java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 25
- firefox as a component of Red Hat Enterprise Linux 10
- firefox.src as a component of Red Hat Enterprise Linux 10
- java-21-openjdk as a component of Red Hat Enterprise Linux 10
- java-21-openjdk-demo as a component of Red Hat Enterprise Linux 10
- java-21-openjdk-demo-fastdebug as a component of Red Hat Enterprise Linux 10
- java-21-openjdk-demo-slowdebug as a component of Red Hat Enterprise Linux 10
- java-21-openjdk-devel as a component of Red Hat Enterprise Linux 10
- java-21-openjdk-devel-fastdebug as a component of Red Hat Enterprise Linux 10
- java-21-openjdk-devel-slowdebug as a component of Red Hat Enterprise Linux 10
- and 269 more
- Fixed
- Action
- For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
- Workaround
- No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 4 Jun 2026 · Last source change 4 Jun 2026, 16:37 UTC · CWE-436 · Interpretation Conflict
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-34287
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- = 1.8.0; >= 1.6.49, <= 1.6.57 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
- After
- = 1.8.0; >= 1.6.49, <= 1.6.57 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
- Remediation statusRemediation status changed from Awaiting fix to Patch available.Red Hat Product Security ↗
- Before
- Awaiting fix
- After
- Patch available
- Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-40930 to remediation: access.redhat.com/CVE-2026-40930.Red Hat Product Security ↗
- Before
- remediation: access.redhat.com/CVE-2026-40930
- After
- remediation: access.redhat.com/CVE-2026-40930
- Remediation statusRemediation status changed from Mitigation available to Patch available.Red Hat Product Security ↗
- Before
- Mitigation available
- After
- Patch available
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- java-1.8.0-openjdk-portable.src as a component of Red Hat build of OpenJDK 1.8; java-17-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-11-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-11-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk.src as a component of Red Hat build of OpenJDK 17; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 25; firefox as a component of Red Hat Enterprise Linux 10; firefox.src as a component of Red Hat Enterprise Linux 10; java-21-openjdk as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-slowdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-slowdebug as a component of Red Hat Enterprise Linux 10; and 270 more
- After
- java-1.8.0-openjdk-portable.src as a component of Red Hat build of OpenJDK 1.8; java-17-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-11-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-11-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk.src as a component of Red Hat build of OpenJDK 17; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 25; firefox as a component of Red Hat Enterprise Linux 10; firefox.src as a component of Red Hat Enterprise Linux 10; java-21-openjdk as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-slowdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-slowdebug as a component of Red Hat Enterprise Linux 10; and 269 more · Fixed: libpng-main@aarch64 as a component of Red Hat Hardened Images; libpng-main@src as a component of Red Hat Hardened Images; libpng-main@x86_64 as a component of Red Hat Hardened Images
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- java-1.8.0-openjdk-portable.src as a component of Red Hat build of OpenJDK 1.8; java-17-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-11-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-11-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk.src as a component of Red Hat build of OpenJDK 17; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 25; firefox as a component of Red Hat Enterprise Linux 10; firefox.src as a component of Red Hat Enterprise Linux 10; java-21-openjdk as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-slowdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-slowdebug as a component of Red Hat Enterprise Linux 10; and 269 more
- After
- java-1.8.0-openjdk-portable.src as a component of Red Hat build of OpenJDK 1.8; java-17-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 1.8; java-21-openjdk.src as a component of Red Hat build of OpenJDK 1.8; java-11-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-11-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 11 ELS; java-21-openjdk.src as a component of Red Hat build of OpenJDK 11 ELS; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS; java-17-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 17; java-21-openjdk.src as a component of Red Hat build of OpenJDK 17; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 17; java-17-openjdk.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk-vanilla.src as a component of Red Hat build of OpenJDK 21; java-21-openjdk.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 21; java-25-openjdk-portable.src as a component of Red Hat build of OpenJDK 25; firefox as a component of Red Hat Enterprise Linux 10; firefox.src as a component of Red Hat Enterprise Linux 10; java-21-openjdk as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-demo-slowdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-fastdebug as a component of Red Hat Enterprise Linux 10; java-21-openjdk-devel-slowdebug as a component of Red Hat Enterprise Linux 10; and 270 more
CVE published
Fixed release recorded from official guidance
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.