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CVE-2012-0920

25
FAUCET Score

CVE-2012-0920 is a use-after-free vulnerability in Dropbear SSH Server versions 0.52 through 2012.54, affecting Debian Linux and Dropbear SSH. When command restriction and public key authentication are enabled, authenticated attackers can bypass restrictions and execute arbitrary code through crafted command requests. This vulnerability has a CVSS score of 7.1, indicating high severity with network access, high attack complexity, and complete confidentiality, integrity, and availability impact. There is no public exploit code available, it is not listed in CISA's KEV catalog, and it has received no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.52, <= 2012.54CPE matchmatch criteria
cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

AV:N/AC:H/Au:S/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
SINGLE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.49%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0649 is in the 93rd percentile among its peer group of 1,162 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 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

matt.ucc.asn.au / dropbear/CHANGES
Vendor Advisory
secunia.com / advisories/48147
Third Party Advisory
secunia.com / advisories/48929
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/73444
Third Party AdvisoryVDB Entry
secure.ucc.asn.au / hg/dropbear/rev/818108bf7749
Vendor Advisory
mantor.org / ~northox/misc/CVE-2012-0920.html
Third Party Advisory
debian.org / security/2012/dsa-2456
Third Party Advisory
osvdb.org / 79590
Broken Link
securityfocus.com / bid/52159
Third Party AdvisoryVDB Entry