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CVE-2016-1834
Heap-based buffer overflow in the xmlStrncat function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5,…
High7.8EPSS 4.6%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
Heap-based buffer overflow in the xmlStrncat function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.
Timeline
ID reserved
By apple
- 4 months later
· 4 months later
Published
- 10 years later
· 10 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.6% · top 8.2% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (21)
- https://git.gnome.org/browse/libxml2/commit/?id=8fbbf5513d609c1770b391b99e33314cd0742704 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://kc.mcafee.com/corporate/index?page=content&id=SB10170 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:1292 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/HT206567 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 90691 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.gnome.org/show_bug.cgi?id=763071 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3593 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://xmlsoft.org/news.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2016-05-16-4 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- USN-2994-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://support.apple.com/HT206566 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.tenable.com/security/tns-2016-18 (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2016-05-16-3 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- https://support.apple.com/HT206564 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:2957 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 1035890 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- APPLE-SA-2016-05-16-2 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- https://support.apple.com/HT206568 (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2016-05-16-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_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-2016-1834)Record last updated .