CVE-2026-45258
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-45258 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation even though it is not (yet) in the CISA KEV catalog.
A local attacker can exploit multiple vulnerabilities in FreeBSD Project FreeBSD OS to gain elevated privileges – possibly even administrator rights –, bypass security measures, disclose confidential information, manipulate data, or perform other unspecified attacks.
CSIRTS triage
- What
- Multiple vulnerabilities in FreeBSD OS allow local attackers to gain elevated or administrator privileges, bypass security measures, disclose confidential information, and manipulate data.
- Who is affected
- Local users on FreeBSD systems running vulnerable versions.
- Urgency
- High severity due to privilege escalation and local attack vector; prompt updates needed.
- Action
- Apply FreeBSD security updates for the reported CVEs.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2026-45258 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (2)
- high[UPDATE] [high] FreeBSD Project FreeBSD OS: Multiple Vulnerabilitiescert-bund · 2026-08-13
- highCVE-2026-45258: dsp_mmap_single() validated the requested mapping by checking the sum of the user-supplied off…nvd · 2026-06-27
External references
Embed the live status
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[](https://www.csirts.com/cve/CVE-2026-45258)