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, 11:52 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 30 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 4.0.2-11.el9_6) that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.6 Extended Update Support and related products should apply these official security updates promptly. For detailed update instructions, refer to the Red Hat advisory at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.
Description
Two security vulnerabilities have been identified in the Capstone disassembly framework used in Red Hat Enterprise Linux 9.6 Extended Update Support and related products. The first vulnerability (CVE-2025-68114) involves memory corruption due to an unchecked vsnprintf return value. The second vulnerability (CVE-2025-67873) is a heap buffer overflow triggered via the skipdata callback, which could lead to denial of service or arbitrary code execution. Red Hat has released updated packages to address these issues.
References
- access.redhat.com/errata/RHSA-2026:5124 (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_5124.json (opens in a new tab)