Vulnerability · CVE-2026-8931
A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.
Published Jun 1, 2026 · catalog updated Jul 22, 2026 · A critical Remote Code
Check if you run it
No confirmed exploitation is on record for CVE-2026-8931. EPSS is 0.98%. Act only if a listed version of A critical Remote Code is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (A critical Remote Code).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Critical9.4
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.98%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-8931
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-8931. EPSS is 0.98%. Act only if a listed version of A critical Remote Code is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-94: Code Injection. EPSS 0.98%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 1, 2026 · NIST NVD
Detected
A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.
Jul 22, 2026 · NIST NVD
Updated
A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.
Sources
- CVE.orgVulnerability recordCVE-2026-8931
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-8931
30-day exploitation probability 1.0%
first.org - NIST NVDVulnerability recordCVE-2026-8931
A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.