Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.44% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-103226High confidence
Artifex Ghostscript Pdfwrite gdevpsfx.c type1_callsubr stack-based overflow
Artifex · Ghostscript
5.3MediumCVSS 4.0
Scheduled
Fix not verifiedMedium 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
- 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 Artifex Ghostscript and falls inside the recorded affected range.
- Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
- 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
5 package statesRelease-specific package status
Debian, ubuntu 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 |
|---|---|---|---|---|
| Debian trixietrixie · source | ghostscript | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 7 Oct 2026 |
| Debian bookwormbookworm · source | ghostscript | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 7 Oct 2026 |
| Debian forkyforky · source | ghostscript | Vendor fix publishedDebian records a fixed source-package version for this release. | 10.08.0~dfsg-1 | Debian Security Tracker ↗Source updated 7 Oct 2026 |
| Debian sidsid · source | ghostscript | Vendor fix publishedDebian records a fixed source-package version for this release. | 10.08.0~dfsg-1 | Debian Security Tracker ↗Source updated 7 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | ghostscript | Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing. | Not published in this feed | Canonical Ubuntu Security ↗Source updated 6 Oct 2026 |
Direct vendor intelligence
2 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-2026-103226 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-103226
The vendor explicitly identifies these products as affected by this CVE.
- ghostscript as component of SUSE Linux Enterprise Desktop 15 SP7
- ghostscript-devel as component of SUSE Linux Enterprise Desktop 15 SP7
- ghostscript-x11 as component of SUSE Linux Enterprise Desktop 15 SP7
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- Summary
- A vulnerability was identified in Artifex Ghostscript up to 10.09.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is suggested to install a patch to address this issue. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
- Remediation
- No remediation text is recorded.
CVE-2026-103226 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityghostscript: ghostscript: stack-based buffer overflow in pdfwrite via crafted font data
The vendor explicitly identifies these products as affected by this CVE.
- ghostscript as a component of Red Hat Enterprise Linux 10
- ghostscript-doc as a component of Red Hat Enterprise Linux 10
- ghostscript-tools-dvipdf as a component of Red Hat Enterprise Linux 10
- ghostscript-tools-fonts as a component of Red Hat Enterprise Linux 10
- ghostscript-tools-printing as a component of Red Hat Enterprise Linux 10
- ghostscript.src as a component of Red Hat Enterprise Linux 10
- libgs as a component of Red Hat Enterprise Linux 10
- libgs-devel as a component of Red Hat Enterprise Linux 10
- ghostscript as a component of Red Hat Enterprise Linux 6
- ghostscript-devel as a component of Red Hat Enterprise Linux 6
- ghostscript-doc as a component of Red Hat Enterprise Linux 6
- ghostscript-gtk as a component of Red Hat Enterprise Linux 6
- Summary
- A flaw was found in ghostscript. This vulnerability allows a remote attacker to trigger an application crash leading to a Denial of Service (DoS) or potentially execute arbitrary code by tricking a user or service into processing a specially crafted file. The issue stems from a stack-based buffer overflow in the pdfwrite component during Type 1 font processing.
- Remediation
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Fix not verified01
What, why and how
A vulnerability was identified in Artifex Ghostscript up to 10.09.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is suggested to install a patch to address this issue. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
What
A vulnerability was identified in Artifex Ghostscript up to 10.09.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is suggested to install a patch to address this issue. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
Why
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
How
An attacker operating through a network path may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
A vulnerability was identified in Artifex Ghostscript up to 10.09.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is suggested to install a patch to address this issue. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
Why
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
How
An attacker operating through a network path may attempt exploitation when the stated preconditions are met. 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 → Stack-based Buffer Overflow → cause the confidentiality, integrity or availability impact described by the vendor
- Attack surface
- Network
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- Passive interaction required
- Attack complexity
- Low: no specialised conditions are recorded
- Security boundary
- Not a CVSS 4.0 base metric
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-121 ↗
CWE-121: Stack-based Buffer Overflow. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PCommon Vulnerability Scoring System 4.0: 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.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIPassiveUser interaction: A user must unknowingly interact with the vulnerable system.VCLowVulnerable-system confidentiality: A successful attack can cause a limited loss.VILowVulnerable-system integrity: A successful attack can cause a limited loss.VALowVulnerable-system availability: A successful attack can cause a limited loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.- 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. - Fix not verified
- Affected
- ghostscript as component of SUSE Linux Enterprise Desktop 15 SP7
- ghostscript-devel as component of SUSE Linux Enterprise Desktop 15 SP7
- ghostscript-x11 as component of SUSE Linux Enterprise Desktop 15 SP7
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 12 SP5
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP4
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP4
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
- ghostscript as component of SUSE Linux Enterprise High Performance Computing 15 SP5
- ghostscript-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5
- ghostscript-x11 as component of SUSE Linux Enterprise High Performance Computing 15 SP5
- ghostscript as component of SUSE Linux Enterprise Module for Basesystem 15 SP7
- ghostscript-devel as component of SUSE Linux Enterprise Module for Basesystem 15 SP7
- ghostscript-x11 as component of SUSE Linux Enterprise Module for Basesystem 15 SP7
- and 85 more
- Fixed
- No fixed version is explicitly recorded in the structured CVE data.
- Action
- No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
- 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 30 Sept 2026 · Last source change 30 Sept 2026, 14:24 UTC · CWE-121 · Stack-based Buffer Overflow
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-10-01
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-89962
Product sourceVendor CSAF · SUSE Product Security Team
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
- Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-103226 to remediation: access.redhat.com/CVE-2026-103226.Red Hat Product Security ↗
- Before
- remediation: access.redhat.com/CVE-2026-103226
- After
- remediation: access.redhat.com/CVE-2026-103226
- Remediation statusRemediation status changed from Awaiting fix to Mitigation available.Red Hat Product Security ↗
- Before
- Awaiting fix
- After
- Mitigation available
- ENISA EUVD mappingEUVD-2026-89962 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-89962"}
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
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.