CVE-2026-49759

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

0.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 40.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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

Modified. NVD last modified this record on 2026-07-24.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

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

2026-06-10 14:35Z2 MO AGO

Last updated

2026-07-24 14:15Z1 MO AGO

Reserved

2026-06-01

Assigning CNA

EEF

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

9eb1f76e02f0c1f65ea2561ec9cbbd5e3b38c74b50cab2179e780cd5ee1fed9d

• github.comhttps://github.com/erlang/otp/security/advisories/GHSA-6f4f-chj5-5g97vendor-advisoryrelated
• cna.erlef.orghttps://cna.erlef.org/cves/CVE-2026-49759.htmlrelated
• osv.devhttps://osv.dev/vulnerability/EEF-CVE-2026-49759related
• www.erlang.orghttps://www.erlang.org/doc/system/versions.html#order-of-versionsx_version-scheme
• github.comhttps://github.com/erlang/otp/commit/3983d495284331c121f600a80bac9fcf4e16381epatch
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-49759vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2487607https://bugzilla.redhat.com/show_bug.cgi?id=2487607issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49759.jsonx_sadp-csaf-vex