Red Hat Security Advisory: capstone security update
Affects Red Hat capstoneSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 4.8 Medium.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 17 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubcapstone-engine/capstonepkg:github/capstone-engine/capstoneOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released updated capstone packages (version 4.0.2-5.el9_0) that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions should apply these updates promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Description
Two security vulnerabilities have been identified in the Capstone disassembly framework used in Red Hat Enterprise Linux 9.0. These include a memory corruption issue caused by an unchecked vsnprintf return (CVE-2025-68114) and a heap buffer overflow via the skipdata callback (CVE-2025-67873). The heap buffer overflow can lead to denial of service or arbitrary code execution. Red Hat has released an update to address these issues in the capstone package version 4.0.2-5.el9_0 for multiple architectures. The update is rated as having a moderate security impact.
References
- access.redhat.com/errata/RHSA-2026:13923 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2423416 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2423419 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_13923.json (opens in a new tab)