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

highCVE-2026-42792 CVE-2026-54890 CVE-2026-55737 CVE-2026-58227 CVE-2026-59251 CVE-2026-59250

A remote, anonymous attacker can exploit multiple vulnerabilities in Erlang/OTP to perform a denial of service attack, execute arbitrary code, bypass security measures, and manipulate or disclose data.

CSIRTS triage

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

What: Multiple vulnerabilities in Erlang/OTP can be exploited to perform a denial of service attack, execute arbitrary code, bypass security measures, and manipulate or disclose data.
Who is affected: Deployments of Erlang/OTP are affected by these vulnerabilities.
Urgency: Remediation is urgent due to the high severity and potential for exploitation.
Action: Update to the latest version of Erlang/OTP to mitigate these vulnerabilities.

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: high
Published: 2026-07-31
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-2026-2533

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-2026-427920.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all scored CVEs.
Low exploitation riskCVE-2026-548900.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
Low exploitation riskCVE-2026-557370.13% 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-2026-582270.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.
Low exploitation riskCVE-2026-592510.26% 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-2026-592500.73% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all scored CVEs.
Low exploitation riskCVE-2026-470780.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
Low exploitation riskCVE-2026-559530.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-42792	coverage & exploitation status	NVD · CVE.org
CVE-2026-54890	coverage & exploitation status	NVD · CVE.org
CVE-2026-55737	coverage & exploitation status	NVD · CVE.org
CVE-2026-58227	coverage & exploitation status	NVD · CVE.org
CVE-2026-59251	coverage & exploitation status	NVD · CVE.org
CVE-2026-59250	coverage & exploitation status	NVD · CVE.org
CVE-2026-47078	coverage & exploitation status	NVD · CVE.org
CVE-2026-55953	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.

unknownCVE-2026-59251: Allocation of resources without limits in Erlang/OTP public_key certificate path validation al…nvd · 2026-07-27
unknownCVE-2026-59250: Classic buffer overflow in the Erlang/OTP megaco flex scanner C driver allows a remote unauthe…nvd · 2026-07-27
unknownCVE-2026-58227: The Erlang/OTP ssl application does not detect cycles when reconstructing an incomplete peer c…nvd · 2026-07-27
unknownCVE-2026-55953: The Erlang/OTP ssl TLS 1.2 (and earlier) and DTLS client does not verify that the cipher suite…nvd · 2026-07-27
unknownCVE-2026-54890: Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), …nvd · 2026-07-27
medium[UPDATE] [medium] Erlang/OTP: Multiple vulnerabilities allow bypassing security measurescert-bund · 2026-07-15