CVE-2026-19954

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 13.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-06.

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

2026-10-05 06:54Z24 DAYS AGO

Last updated

2026-10-06 17:52Z22 DAYS AGO

Reserved

2026-08-15

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

Medium (CVSS 5.4)

CNA CVSS vector

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

Weaknesses

• CWE-176Improper Handling of Unicode EncodingVariant

Data version

5.2

Document digest

365fa03000fcd92d70c5d1bf15698d85dff02f71e9a3a2e7163077e61cf3e90d

• metacpan.orghttps://metacpan.org/release/NALOBIN/Net-Whois-Raw-2.99044/changesrelease-notes
• security.metacpan.orghttps://security.metacpan.org/patches/N/Net-Whois-Raw/2.99043/CVE-2026-19954-r1.patchpatch
• github.comhttps://github.com/regru/Net-Whois-Raw/issues/34issue-tracking
• github.comhttps://github.com/regru/Net-Whois-Raw/pull/35issue-tracking
• metacpan.orghttps://metacpan.org/release/PJCJ/Net-IDN-Encode-2.590-TRIAL/view/lib/Net/IDN/Punycode.pm#WARNING
• www.rfc-editor.orghttps://www.rfc-editor.org/rfc/rfc5891#section-5.2technical-description
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/10/05/9