Medium 4.4Published Apr 8, 2013

CVE-2013-2776sudo 1.3.5 through 1.7.10p5 and 1.8.0 through 1.8.6p6, when running on systems without /proc or the sysctl function with the tty_tickets option enabled, does not properly validate the controlling ter…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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sudo 1.3.5 through 1.7.10p5 and 1.8.0 through 1.8.6p6, when running on systems without /proc or the sysctl function with the tty_tickets option enabled, does not properly validate the controlling terminal device, which allows local users with sudo permissions to hijack the authorization of another terminal via vectors related to connecting to the standard input, output, and error file descriptors of another terminal. NOTE: this is one of three closely-related vulnerabilities that were originally assigned CVE-2013-1776, but they have been SPLIT because of different affected versions.

CVSS: 4.4 MEDIUM (v2.0, NVD)AV:L/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-264
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

todd_miller sudo todd_miller:sudo	1.3.5; 1.6; 1.6.1; 1.6.2; 1.6.2p3; 1.6.3; 1.6.3_p7; 1.6.4; and 56 more ranges	NVD
apple mac_os_x apple:mac_os_x	through 10.10.4	NVD

References

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
http://rhn.redhat.com/errata/RHSA-2013-1353.html
http://rhn.redhat.com/errata/RHSA-2013-1701.html
http://www.debian.org/security/2013/dsa-2642
http://www.openwall.com/lists/oss-security/2013/02/27/31
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/58207
http://www.securityfocus.com/bid/62741
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440
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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.