CVE-2026-65634

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 18.3% of scored records. A rank, not a probability.

NVD base score

8.2 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-09-24.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-22 08:49Z1 MO AGO

Last updated

2026-09-24 20:06Z1 MO AGO

Reserved

2026-07-22

Assigning CNA

EEF

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-407Inefficient Algorithmic ComplexityClass

Data version

5.2

Document digest

2287fea0f74bbaf82f22c9bfef33c43df563146a118c2124f31848ace0315b96

• github.comGitHub Advisoryhttps://github.com/erlang/otp/security/advisories/GHSA-qghx-23m5-r55mrelatedvendor-advisory
• cna.erlef.orgEEF CNA record for CVE-2026-65634https://cna.erlef.org/cves/CVE-2026-65634.htmlrelated
• osv.devOSV record EEF-CVE-2026-65634https://osv.dev/vulnerability/EEF-CVE-2026-65634related
• www.erlang.orgErlang/OTP version orderinghttps://www.erlang.org/doc/system/versions.html#order-of-versionsx_version-scheme
• github.comFix commit 0fe2c02 in erlang/otphttps://github.com/erlang/otp/commit/0fe2c02fdc06fab1c63be9db1a7456993d20f838patch