[NEW] [medium] GNU Emacs: Multiple vulnerabilities

mediumCVE-2026-71391 CVE-2026-71392 CVE-2026-71393 CVE-2026-71394

An attacker can exploit multiple vulnerabilities in GNU Emacs to disclose information, execute arbitrary code, and conduct a denial of service attack.

CSIRTS triage

vendor: GNU product: Emacs Information disclosure Remote code execution Denial of service

What: Multiple vulnerabilities in GNU Emacs allow attackers to disclose information, execute arbitrary code, and conduct denial of service attacks.
Who is affected: All GNU Emacs installations are affected; specific versions not stated.
Urgency: Medium—multiple attack vectors present; no active exploitation reported.
Action: Update GNU Emacs to the latest 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: 2026-08-11
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-2026-2721

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-2026-713910.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-713920.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-713930.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-713940.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-71391	coverage & exploitation status	NVD · CVE.org
CVE-2026-71392	coverage & exploitation status	NVD · CVE.org
CVE-2026-71393	coverage & exploitation status	NVD · CVE.org
CVE-2026-71394	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

Recent advisories for GNU Emacs

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] [medium] GNU Emacs: Vulnerability allows information disclosure and DoScert-bund · 2026-08-24
highCVE-2026-77219: GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that all…nvd · 2026-08-21
highCVE-2026-77219: GNU Emacs < 31.0.91 Heap Over-Read via PBM/PPM/PGM Image Loadermsrc · 2026-08-11
unknownCVE-2026-71394: GNU Emacs for Android improperly validates the table header input in sfnt_read_table_directory…nvd · 2026-08-10
unknownCVE-2026-71393: GNU Emacs for Android is vulnerable to an integer overflow in sfnt_read_name_table() in src/sf…nvd · 2026-08-10
unknownCVE-2026-71392: GNU Emacs for Android is vulnerable to an integer overflow in the sfnt_read_cmap_format_12() f…nvd · 2026-08-10