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CVE-2025-69648: GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF .debug_rnglists data. A logic flaw in the DWARF parsing path causes readelf to repeatedly print the same warning message without making forward progress, resulting in a non-terminating output loop that requires manual interruption. No evidence of memory corruption or code execution was observed.

highCVSS 7.4CVE-2025-69648

CSIRTS triage

What
A logic flaw in DWARF .debug_rnglists parsing causes readelf to enter an infinite loop, repeatedly printing warnings.
Who is affected
Systems using readelf to process untrusted or malformed ELF binaries with DWARF debug data.
Urgency
High priority; the vulnerability enables easy denial of service and may impact software supply chain tooling.
Action
Update GNU Binutils to a version that fixes the DWARF .debug_rnglists parsing logic.

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
high — CVSS 7.4
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-69648

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-69648coverage & exploitation statusNVD · CVE.org

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