Evidence used
- No CISA KEV confirmation is currently recorded.
- The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
- EPSS is 0.39% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-1229High confidence
Incorrect calculation in CIRCL secp384r1 CombinedMult
Cloudflare · CIRCL
2.9LowCVSS 4.0
Scheduled
Patch availableLow 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 severityLow→Operational priority:Low, 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 Cloudflare CIRCL 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
1 package stateRelease-specific package status
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 |
|---|---|---|---|---|
| Ubuntu 24.04 LTSnoble · standard archive | golang-github-cloudflare-circl | 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 |
Open-source package ranges2 source-attributed ranges
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| Gogithub.com/cloudflare/circl | SEMVER: introduced 0; fixed 1.6.3 | 1.6.3 | OSV record ↗aggregator derived · 10 Sep 2026 |
| gogithub.com/cloudflare/circl | < 1.6.3 | 1.6.3 | GitHub advisory ↗upstream repository advisory · 2 Mar 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-2026-1229 · CSAF 2.0 · revision 20 · interimSUSE Product Security TeamCVE-2026-1229
The vendor explicitly identifies these products as affected by this CVE.
- grafana as component of SUSE Linux Enterprise Module for Package Hub 15 SP7
- velociraptor as component of SUSE Linux Enterprise Server 16.0
- vexctl as component of SUSE Linux Enterprise Server 16.0
- velociraptor as component of SUSE Linux Enterprise Server for SAP applications 16.0
- vexctl as component of SUSE Linux Enterprise Server for SAP applications 16.0
- grafana as component of SUSE Manager Client Tools for SLE 15
- SLES 15 SP1 CHOST Images for Amazon EC2
- SLES 15 SP2 CHOST Images for Amazon EC2
- SLES 15 SP3 CHOST Images for Amazon EC2
- SLES 15 SP4 CHOST Images for Amazon EC2
- SLES 15 SP5 CHOST Images for Amazon EC2
- SLES 15 SP1 CHOST Images for Google
- Summary
- The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .
- Remediation
- To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Low 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
The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .
What
The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .
Why
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .
Why
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
How
An attacker operating through a network path may attempt exploitation without authentication or 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 → Incorrect Calculation → cause the confidentiality, integrity or availability impact described by the vendor
- Attack surface
- Network
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- None
- Attack complexity
- High: exploitation depends on specific conditions
- Security boundary
- Not a CVSS 4.0 base metric
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-682 ↗
CWE-682: Incorrect Calculation. The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
- 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:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/U:AmberCommon 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.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.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.SCLowSubsequent-system confidentiality: A successful attack can cause a limited loss.SILowSubsequent-system integrity: A successful attack can cause a limited loss.SALowSubsequent-system availability: 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
- grafana as component of SUSE Linux Enterprise Module for Package Hub 15 SP7
- velociraptor as component of SUSE Linux Enterprise Server 16.0
- vexctl as component of SUSE Linux Enterprise Server 16.0
- velociraptor as component of SUSE Linux Enterprise Server for SAP applications 16.0
- vexctl as component of SUSE Linux Enterprise Server for SAP applications 16.0
- grafana as component of SUSE Manager Client Tools for SLE 15
- SLES 15 SP1 CHOST Images for Amazon EC2
- SLES 15 SP2 CHOST Images for Amazon EC2
- SLES 15 SP3 CHOST Images for Amazon EC2
- SLES 15 SP4 CHOST Images for Amazon EC2
- SLES 15 SP5 CHOST Images for Amazon EC2
- SLES 15 SP1 CHOST Images for Google
- SLES 15 SP2 CHOST Images for Google
- SLES 15 SP3 CHOST Images for Google
- SLES 15 SP4 CHOST Images for Google
- SLES 15 SP5 CHOST Images for Google
- SLES 15 SP1 CHOST Images for Microsoft Azure
- SLES 15 SP2 CHOST Images for Microsoft Azure
- SLES 15 SP3 CHOST Images for Microsoft Azure
- SLES 15 SP4 CHOST Images for Microsoft Azure
- SLES 15 SP5 CHOST Images for Microsoft Azure
- velociraptor as component of openSUSE Leap 16.0
- vexctl as component of openSUSE Leap 16.0
- Fixed
- grafana-12.4.10-150200.3.94.3 as component of SUSE Linux Enterprise Module for Package Hub 15 SP7
- system-user-grafana-1.0.0-150200.5.8.1 as component of SUSE Linux Enterprise Module for Package Hub 15 SP7
- firewalld-prometheus-config-0.2-150002.3.19.1 as component of SUSE Multi Linux Manager Tools SLE-15
- golang-github-prometheus-prometheus-3.13.2-150002.3.19.1 as component of SUSE Multi Linux Manager Tools SLE-15
- grafana-12.4.10-150002.4.27.1 as component of SUSE Multi Linux Manager Tools SLE-15
- mgr-push-5.2.5-150002.3.12.1 as component of SUSE Multi Linux Manager Tools SLE-15
- mgrctl-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-15
- mgrctl-bash-completion-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-15
- mgrctl-lang-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-15
- mgrctl-zsh-completion-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-15
- python3-mgr-push-5.2.5-150002.3.12.1 as component of SUSE Multi Linux Manager Tools SLE-15
- python3-spacewalk-client-tools-5.2.7-150002.3.12.1 as component of SUSE Multi Linux Manager Tools SLE-15
- spacecmd-5.2.10-150002.3.15.1 as component of SUSE Multi Linux Manager Tools SLE-15
- spacewalk-client-tools-5.2.7-150002.3.12.1 as component of SUSE Multi Linux Manager Tools SLE-15
- venv-salt-minion-3006.0-150002.5.22.1 as component of SUSE Multi Linux Manager Tools SLE-15
- mgrctl-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-Micro-5
- mgrctl-bash-completion-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-Micro-5
- mgrctl-lang-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-Micro-5
- mgrctl-zsh-completion-5.2.17-150002.3.20.1 as component of SUSE Multi Linux Manager Tools SLE-Micro-5
- venv-salt-minion-3006.0-150002.5.22.1 as component of SUSE Multi Linux Manager Tools SLE-Micro-5
- Action
- To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- 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 24 Feb 2026 · Last source change 24 Feb 2026, 15:10 UTC · CWE-682 · Incorrect Calculation
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-2026-7384
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceCNA
NVD statusNVD enriched
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.SUSE Product Security Team ↗
- Before
- CIRCL up to version 1.6.2 < 1.6.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
- After
- CIRCL up to version 1.6.2 < 1.6.3 · Fixed: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Remediation statusRemediation status changed from Awaiting fix to Patch available.SUSE Product Security Team ↗
- Before
- Awaiting fix
- After
- Patch available
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.