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CVE-2016-9643
The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large…
High7.5EPSS 2.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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).
Timeline
ID reserved
By mitre
- 3 months later
· 3 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (5)
- 1038137 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- [oss-security] 20161126 Re: CVE Request: resource exhaustion in regex expression handling in WebKit (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201706-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [oss-security] 20161126 CVE Request: resource exhaustion in regex expression handling in WebKit (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 94559 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-9643)Record last updated .