[UPDATE] [medium] Red Hat Enterprise Linux (giflib): Vulnerability allows denial of service
A remote, anonymous attacker can exploit a vulnerability in Red Hat Enterprise Linux to conduct a denial of service attack.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit a vulnerability to conduct a denial of service attack.
- Who is affected
- Remote users targeting Red Hat Enterprise Linux deployments.
- Urgency
- Remediation is medium urgency as it allows for denial of service.
- Action
- Apply the latest patches provided by Red Hat.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2137
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-2026-267400.62% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 47% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-26740 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownUSN-8583-1: GIFLIB vulnerabilitiesubuntu
Recent advisories for Red Hat Enterprise
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[NEW] [high] Red Hat Enterprise Linux (Apicurio Registry): Multiple Vulnerabilitiescert-bund · 2026-08-25
- high[NEW] [high] Red Hat Enterprise Linux (mrtg, kbd, urwid): Multiple vulnerabilitiescert-bund · 2026-08-25
- medium[NEW] [medium] Red Hat Enterprise Linux (pyasn1): Vulnerability enables Denial of Servicecert-bund · 2026-08-25
- high[UPDATE] [high] Fast Datapath for Red Hat Enterprise Linux (ovn): Multiple Vulnerabilitiescert-bund · 2026-08-25
- high[NEW] [high] Red Hat Enterprise Linux (nodejs:24): Multiple vulnerabilitiescert-bund · 2026-08-25
- medium[NEW] [medium] Red Hat Enterprise Linux (yelp, dracut): Multiple vulnerabilitiescert-bund · 2026-08-25
More from CERT-Bund (BSI) Security Advisories
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