[NEW] [medium] OpenSSL: Vulnerability Enables Denial of Service
A remote, anonymous attacker can exploit a vulnerability in OpenSSL to conduct a denial of service attack.
CSIRTS triage
- What
- A vulnerability in OpenSSL allows remote anonymous attackers to trigger denial of service.
- Who is affected
- All systems running vulnerable OpenSSL versions.
- Urgency
- Medium severity denial of service; patch when convenient but not critical.
- Action
- Update OpenSSL to the patched version.
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-2026-2668
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-2026-548760.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-54876 | 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 OpenSSL
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.
- unknownOpenSSL security advisory (AV26-846)cccs · 2026-08-25
- unknownUSN-8678-1: OpenSSL vulnerabilitiesubuntu · 2026-08-25
- highCVE-2026-63076: Issue summary: OpenSSL CMP password based protection verification only checks whether the prot…nvd · 2026-08-25
- highCVE-2026-63075: Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-elici…nvd · 2026-08-25
- mediumCVE-2026-63074: Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificate…nvd · 2026-08-25
- unknownCVE-2026-63073: Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguis…nvd · 2026-08-25
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