[UPDATE] [medium] libTIFF: Multiple vulnerabilities enable denial of service

mediumCVE-2025-61143 CVE-2025-61144 CVE-2025-61145

A local attacker can exploit multiple vulnerabilities in libTIFF to perform a denial of service attack.

CSIRTS triage

vendor: libTIFF product: libTIFF Denial of service

What: Multiple vulnerabilities in libTIFF enable local denial-of-service attacks.
Who is affected: Systems processing untrusted TIFF files locally are affected.
Urgency: Medium severity; DOS from local file processing is limited scope.
Action: Update libTIFF to the patched version.

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

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-20
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0482

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-2025-611430.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-611440.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-611450.13% 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-2025-61143	coverage & exploitation status	NVD · CVE.org
CVE-2025-61144	coverage & exploitation status	NVD · CVE.org
CVE-2025-61145	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownUSN-8113-2: LibTIFF vulnerabilitiesubuntu

Recent advisories for libTIFF

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.

unknownCVE-2026-52491: An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arb…nvd · 2026-08-25
medium[NEW] [medium] libTIFF: Multiple Vulnerabilitiescert-bund · 2026-08-25
unknownCVE-2026-52492: An integer overflow in the libtiff rgb2ycbcr utility's cvtRaster() function when computing str…nvd · 2026-08-24
criticalCVE-2026-52490: An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arb…nvd · 2026-08-24
medium[UPDATE] [medium] libTIFF: Vulnerability allows code execution and Denial of Servicecert-bund · 2026-08-24
unknownCVE-2026-70651: libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, lib…nvd · 2026-08-20