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 for Red Hat Enterprise Linux 10.0 Extended Update Support to address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:5224 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation is indicated beyond applying the official update.
Description
Two security vulnerabilities have been identified in the Capstone disassembly framework used in Red Hat Enterprise Linux 10.0 Extended Update Support. The first is a memory corruption issue caused by an unchecked vsnprintf return (CVE-2025-68114). The second is a heap buffer overflow triggered via the skipdata callback, which can lead to denial of service or arbitrary code execution (CVE-2025-67873). Red Hat has released an update to address these issues in the affected packages.
References
- access.redhat.com/errata/RHSA-2026:5224 (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_5224.json (opens in a new tab)