CVE-2016-9643 json
The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number…
published 2017-03-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10444
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.7%
- EPSS 2.7% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known
Summary
The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number of ($ (open parenthesis and dollar) followed by {-2,16} and a large number of +) (plus close parenthesis).
Patch / fix
- webkit2gtk Ubuntu 16.04 LTS 2.16.1-0ubuntu0.16.04.1
ubuntu advisories UBUNTU-CVE-2016-9643
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
2.67% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
security.gentoo.org
/glsa/201706-15
vendor-advisory
-
securitytracker.com
/id/1038137
vdb-entry
-
openwall.com
/lists/oss-security/2016/11/26/5
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2016/11/26/2
mailing-list, third-party-advisory
-
securityfocus.com
/bid/94559
vdb-entry
Sources
- CVE List CVE-2016-9643
- NVD CVE-2016-9643
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.