[UPDATE] [low] poppler: Vulnerability enables bypass of security measures

lowCVE-2025-43903

A local attacker can exploit a vulnerability in poppler to bypass security measures.

CSIRTS triage

vendor: poppler product: poppler Authentication bypass

What: A vulnerability in poppler allows local attackers to bypass security measures.
Who is affected: Local users on systems running poppler can exploit this vulnerability.
Urgency: Low urgency; local security bypass is lower priority than remote or code execution threats.
Action: Include in poppler patching schedule with other fixes.

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: low
Published: 2026-08-03
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-2025-0934

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-2025-439030.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-43903	coverage & exploitation status	NVD · CVE.org

Recent advisories for poppler

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.

high[UPDATE] [high] poppler: Vulnerability allows code executioncert-bund · 2026-08-03
medium[UPDATE] [medium] poppler: Multiple vulnerabilitiescert-bund · 2026-08-03
medium[UPDATE] [medium] poppler: Vulnerability enables denial of servicecert-bund · 2026-08-03
medium[UPDATE] [medium] Red Hat Enterprise Linux (Poppler): Vulnerability allows code executioncert-bund · 2026-08-03