CVE-2016-3739
The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection
02 Description
The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 6.92% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 93.8% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-05-20 00:00Z10 YR AGO
- Last updated
- 2024-08-06 00:03Z2 YR AGO
- Reserved
- 2016-03-30
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 61f5209be80e2196db361ad830c2c2920a5962960b9c4fcba3b07be2238c88bc
05 Affected products
06 References
- h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
- www.securitytracker.com1035907http://www.securitytracker.com/id/1035907
- curl.haxx.sehttps://curl.haxx.se/docs/adv_20160518.html
- www.slackware.comSSA:2016-141-01http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.495349
- www.securityfocus.com90726http://www.securityfocus.com/bid/90726
- curl.haxx.sehttps://curl.haxx.se/CVE-2016-3739.patch
- h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- security.gentoo.orgGLSA-201701-47https://security.gentoo.org/glsa/201701-47
- curl.haxx.sehttps://curl.haxx.se/changes.html#7_49_0
- www.openwall.com[oss-security] 20240327 [SECURITY ADVISORY] curl: CVE-2024-2466: TLS certificate check bypass with mbedTLShttp://www.openwall.com/lists/oss-security/2024/03/27/4
07 Fixed in
Debian 12
- curl Fixed in 7.50.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- curl Fixed in 7.50.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- curl Fixed in 7.50.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.