[UPDATE] [low] GnuTLS: Vulnerability allows unspecified attack
A local attacker can exploit a vulnerability in GnuTLS to conduct an unspecified attack.
CSIRTS triage
- What
- A local attacker can exploit a vulnerability in GnuTLS to conduct an unspecified attack.
- Who is affected
- Local deployments of GnuTLS are affected.
- Urgency
- Remediation is low urgency as the severity is low and exploitation is not reported.
- Action
- Monitor for updates from GnuTLS.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch GnuTLS
Get an email when a new GnuTLS advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2651
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-2025-98200.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-9820 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownUSN-8502-1: GnuTLS vulnerabilitiesubuntu
Recent advisories for GnuTLS
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] GnuTLS: Multiple vulnerabilitiescert-bund · 2026-07-10
- medium[UPDATE] [medium] GnuTLS: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] GnuTLS: Vulnerability allows denial of servicecert-bund · 2026-07-07
- medium[UPDATE] [medium] GnuTLS: Multiple vulnerabilitiescert-bund · 2026-07-07
- unknownUSN-8502-1: GnuTLS vulnerabilitiesubuntu · 2026-07-06
- lowCVE-2026-5419: Guntls: gnutls: information disclosure via timing side-channel in pkcs#7 padding removalmsrc · 2026-06-09
More from CERT-Bund (BSI) Security Advisories
- medium[NEW] [medium] DENX U-Boot: Multiple vulnerabilities allow execution of arbitrary code and DoS2026-07-10
- medium[NEW] [medium] Samsung Android: Multiple vulnerabilities2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10