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CVE-2016-0755
The ConnectionExists function in lib/url.c in libcurl before 7.47.0 does not properly re-use NTLM-authenticated proxy connections, which…
High7.3EPSS 9.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The ConnectionExists function in lib/url.c in libcurl before 7.47.0 does not properly re-use NTLM-authenticated proxy connections, which might allow remote attackers to authenticate as other users via a request, a similar issue to CVE-2014-0015.
Timeline
ID reserved
By redhat
- 44 days later
· 44 days later
Published
- 9 years later
· 9 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 | High7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
- EPSS (exploitation in 30 days)
- 9.1% · top 4.7% 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 7.3.
Weakness
Affected products
n/a
- affected n/a
References (18)
- FEDORA-2016-57bebab3b6 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://packetstormsecurity.com/files/135695/Slackware-Security-Advisory-curl-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2016:0360 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2016-3fa315a5dd (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- APPLE-SA-2016-09-20 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- http://curl.haxx.se/docs/adv_20160127A.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- SSA:2016-039-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- DSA-3455 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- openSUSE-SU-2016:0376 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 82307 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://support.apple.com/HT207170 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2016:0373 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1034882 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2016-5a141de5d9 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- USN-2882-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201701-47 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FEDORA-2016-55137a3adb (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_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-2016-0755)Record last updated .