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CVE-2016-2570
The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which…
High7.5EPSS 9.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 8 years later
· 8 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)
- 9.0% · top 4.7% of all CVEs (9 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 (11)
- USN-3557-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201607-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- http://www.squid-cache.org/Advisories/SQUID-2016_2.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2016:1996 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-14549.patch (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:2600 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- openSUSE-SU-2016:2081 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13993.patch (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20160226 Re: CVE request: Squid HTTP Caching Proxy multiple denial of service issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SU-2016:2089 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1035101 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_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-2016-2570)Record last updated .