DSA-6442-1 util-linux - security update
Several vulnerabilities were discovered in util-linux which could result in privilege escalation. https://security-tracker.debian.org/tracker/DSA-6442-1
CSIRTS triage
- What
- Multiple privilege escalation vulnerabilities exist in util-linux utilities.
- Who is affected
- All systems running util-linux, particularly those where untrusted users can invoke affected utilities.
- Urgency
- High; privilege escalation vulnerabilities allow authorized users to gain elevated access and should be remediated promptly.
- Action
- Update util-linux to the patched version in Debian DSA-6442-1.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://lists.debian.org/debian-security-announce/2026/msg00353.html
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-135950.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-274560.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-13595 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-27456 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-53612 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-53613 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-53614 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- medium[UPDATE] [medium] util-linux: Vulnerability enables denial of service and information disclosurecert-bund
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 7, 2026)cert-fr-avis
- mediumCVE-2026-13595: A flaw was found in the libblkid library of util-linux. During nested partition probing, the B…nvd
- mediumCVE-2026-13595: Util-linux: util-linux: heap use-after-free in libblkid nested partition probingmsrc
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