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CVE-2016-9928

26
FAUCET Score

CVE-2016-9928 describes a roster push vulnerability in MCabber versions prior to 1.0.4, impacting various Canonical and Debian Linux distributions. This high-severity vulnerability (CVSS 7.4) allows remote attackers to intercept communications or impersonate users by adding themselves to a third party's roster via crafted XMPP packets. While the attack complexity is high, successful exploitation could lead to significant confidentiality and integrity breaches. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, < 1.0.4CPE matchmatch criteria
cpe:2.3:a:mcabber:mcabber:*:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.51%
Probability of exploitation in next 30 days
EPSS Percentile
90.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0451 is in the 56th percentile among its peer group of 8,913 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.opensuse.org / opensuse-updates/2017-01/msg00130.html
Mailing ListThird Party Advisory
bitbucket.org / McKael/mcabber-crew/commits/6e1ead98930d7dd0a520ad17c720ae4908429033/raw
PatchThird Party Advisory
bugs.debian.org / cgi-bin/bugreport.cgi
ExploitThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
gultsch.de / gajim_roster_push_and_message_interception.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00031.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 4506-1
Third Party Advisory
openwall.com / lists/oss-security/2016/12/11/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2017/02/09/29
Mailing ListThird Party Advisory
securityfocus.com / bid/94862
Third Party AdvisoryVDB Entry