CVE-2026-44605: Rpm: heap buffer overflow in ndb slot table parsing

mediumCVSS 5.5CVE-2026-44605

CSIRTS triage

vendor: Rpm product: Rpm Memory corruption

What: Heap buffer overflow in NDB slot table parsing allows out-of-bounds memory write during RPM database parsing.
Who is affected: Systems parsing RPM database files or packages with malformed NDB slot tables.
Urgency: Medium urgency; remote code execution is theoretically possible via crafted RPM but requires specific exploitation conditions.
Action: Upgrade to patched Rpm version once available; avoid processing untrusted RPM files or databases.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44605

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-2026-446050.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-44605	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

mediumCVE-2026-44605: A flaw was found in the RPM Package Manager (RPM). A local user could be affected by a heap bu…nvd

Recent advisories for Rpm

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[NEW] [UNPATCHED] [medium] RPM: Vulnerability allows Execution of Arbitrary Code with User Privilegescert-bund · 2026-08-25
highCVE-2026-78367: A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted sour…nvd · 2026-08-24
unknownCVE-2026-72394: In the Linux kernel, the following vulnerability has been resolved: hwmon: (aspeed-g6-pwm-tach…nvd · 2026-08-15
mediumCVE-2026-19519: A flaw was found in claircore's RPM package scanner. Crafted RPM header data in a container la…nvd · 2026-08-11
mediumCVE-2026-44605: A flaw was found in the RPM Package Manager (RPM). A local user could be affected by a heap bu…nvd · 2026-08-05