[NEW] [low] patch: Multiple vulnerabilities allow denial of service
An attacker can exploit multiple vulnerabilities in patch to carry out a denial of service attack.
CSIRTS triage
- What
- Multiple vulnerabilities in patch can be exploited to carry out denial-of-service attacks.
- Who is affected
- Users of the affected patch software.
- Urgency
- Remediation is low urgency as the impact is limited to denial-of-service.
- Action
- Apply the latest updates for the patch software.
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-2026-2274
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-2026-562880.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
- Low exploitation riskCVE-2026-562890.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-56288 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-56289 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownCVE-2026-56289: GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (singl…nvd
- unknownCVE-2026-56288: GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unif…nvd
- unknownCVE-2026-56288: NULL Pointer Dereference in GNU patchmsrc
- unknownCVE-2026-56289: Loop with Unreachable Exit Condition in GNU patchmsrc
Recent advisories for patch
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.
- highCVE-2026-55516: Snipe-IT is an IT asset/license management system. Prior to 8.6.2, PATCH or PUT /api/v1/mainte…nvd · 2026-07-10
- unknownCVE-2026-56289: GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (singl…nvd · 2026-07-09
- unknownCVE-2026-56288: GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unif…nvd · 2026-07-09
- highCVE-2026-55470: HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperabilit…nvd · 2026-07-08
- criticalGitLab Patch Release: 19.1.2, 19.0.4, 18.11.7gitlab · 2026-07-08
- highCVE-2026-59194: pnpm is a package manager. Prior to 10.34.4 and 11.7.0, a crafted patch entry could resolve ou…nvd · 2026-07-06
More from CERT-Bund (BSI) Security Advisories
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- 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