CVE-2026-16634

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 ImpacttotalSuccessful exploitation gives total 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

0.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 57.1% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-10-24.

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

2026-07-24 09:14Z3 MO AGO

Last updated

2026-07-27 17:15Z3 MO AGO

Reserved

2026-07-22

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-1104Use of Unmaintained Third Party ComponentsBase
• CWE-1395Dependency on Vulnerable Third-Party ComponentClass

Data version

5.2

Document digest

3bb8de41b8b5247076b313b0dccbf8fff2133e6d42ad3905eb2d5af3f11f3842

• metacpan.orghttps://metacpan.org/release/FELIPE/TOML-XS-0.06/changesrelease-notes
• raw.githubusercontent.comhttps://raw.githubusercontent.com/cktan/tomlc99/29076dfd095bbbbd50a3c1b2760d29f4b83e74ac/README.md
• github.comhttps://github.com/cktan/tomlc99/issues/97issue-tracking
• github.comhttps://github.com/cktan/tomlc17
• toml.iohttps://toml.io/en/v1.0.0technical-description
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/07/24/4