[NEW] [medium] Erlang/OTP: Multiple vulnerabilities

mediumCVE-2026-53422 CVE-2026-54886 CVE-2026-54887 CVE-2026-54891 CVE-2026-55950 CVE-2026-55952

An attacker can exploit multiple vulnerabilities in Erlang/OTP to conduct a denial of service attack, disclose information, and bypass security measures.

CSIRTS triage

vendor: Erlang/OTP product: Erlang/OTP Denial of service Information disclosure Authentication bypass

What: Multiple vulnerabilities can be exploited to conduct denial of service attacks, disclose information, and bypass security measures.
Who is affected: Deployments of Erlang/OTP are affected.
Urgency: Remediation is necessary to mitigate the risk of denial-of-service and information disclosure.
Action: Update Erlang/OTP to the latest 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: 2026-07-10
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-2026-2194

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-2026-534220.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all scored CVEs.
Low exploitation riskCVE-2026-548860.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all scored CVEs.
Low exploitation riskCVE-2026-548870.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.
Low exploitation riskCVE-2026-548910.14% 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-2026-559500.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.
Low exploitation riskCVE-2026-559520.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53422	coverage & exploitation status	NVD · CVE.org
CVE-2026-54886	coverage & exploitation status	NVD · CVE.org
CVE-2026-54887	coverage & exploitation status	NVD · CVE.org
CVE-2026-54891	coverage & exploitation status	NVD · CVE.org
CVE-2026-55950	coverage & exploitation status	NVD · CVE.org
CVE-2026-55952	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 Erlang/OTP

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-2026-55952: The Erlang/OTP ssl application does not validate that the PSK identity list and binder list ca…nvd · 2026-07-02
mediumCVE-2026-55950: Time-of-check Time-of-use (TOCTOU) race condition vulnerability in Erlang/OTP ssl (dtls_packet…nvd · 2026-07-02
lowCVE-2026-54891: Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulne…nvd · 2026-07-02
mediumCVE-2026-54887: Use of Default Cryptographic Key vulnerability in Erlang/OTP ssl (DTLS server) allows predicta…nvd · 2026-07-02
criticalexploitedCVE-2025-32433: Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function Vulnerabilitycisa-kev · 2025-06-09