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CVE-2015-3236

17
FAUCET Score

CVE-2015-3236 describes an information disclosure vulnerability affecting cURL and libcurl versions 7.40.0 through 7.42.1. When a reset connection handle is reused for the same hostname, HTTP Basic authentication credentials from a previous connection can be inadvertently sent, potentially exposing sensitive information. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for partial confidentiality impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.40.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.40.0:*:*:*:*:*:*:*
7.41.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.41.0:*:*:*:*:*:*:*
7.42.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.42.0:*:*:*:*:*:*:*
7.42.1CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.42.1:*:*:*:*:*:*:*
7.40.0CPE matchmatch criteria
cpe:2.3:a:haxx:libcurl:7.40.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.21%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0821 is in the 93rd percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

jitsipatch availablevia llm_extracted
Fixed in: 7.42.1
View patch
oraclepatch availablevia nvd_reference
View patch
sierra_wirelesspatch availablevia llm_extracted
Fixed in: 7.42.1
View patch

Vendor Advisories (3)

redhatCVE-2015-3236Low

curl: lingering HTTP credentials in connection re-use

Jun 17, 2015
sierra_wirelessllm-sierra_wireless-c1a009aa0a1135faHIGH

lingering HTTP credentials in connection reuse

Jun 17, 2015
jitsillm-jitsi-8552683f3e71d07eHIGH

lingering HTTP credentials in connection reuse

Jun 17, 2015

References

curl.haxx.se / docs/adv_20150617A.html
Vendor Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-June/160660.html
kc.mcafee.com / corporate/index
security.gentoo.org / glsa/201509-02
oracle.com / technetwork/security-advisory/cpujul2016-2881720.html
PatchThird Party Advisory
oracle.com / technetwork/security-advisory/cpuoct2018-4428296.html
oracle.com / technetwork/topics/security/bulletinjan2016-2867206.html
oracle.com / technetwork/topics/security/cpuoct2015-2367953.html
PatchThird Party Advisory
securityfocus.com / bid/75385
securityfocus.com / bid/91787
Third Party AdvisoryVDB Entry