CVE-2016-15059

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

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.8% 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 2026-09-22.

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 07:18Z1 MO AGO

Last updated

2026-09-22 17:07Z1 MO AGO

Reserved

2026-09-08

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-122Heap-based Buffer OverflowVariant

Data version

5.2

Document digest

4659b83198bdb56543db727dca792cd9f287eae086ef8cb6f5839c6afb32a474

• rt.cpan.orghttps://rt.cpan.org/Ticket/Display.html?id=118924issue-tracking
• github.comhttps://github.com/robrwo/Net-IDN-Encode/commit/9a3ba07f15d22c0347eefee9625b012cbc803657.patchpatch
• metacpan.orghttps://metacpan.org/release/CFAERBER/Net-IDN-Encode-2.301/changesrelease-notes
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/09/22/10