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CVE-2009-0363

20
FAUCET Score

CVE-2009-0363 describes multiple buffer overflow vulnerabilities in BarnOwl versions prior to 1.0.5 and owl 2.1.11. These flaws allow remote attackers to execute arbitrary code through crafted zcrypt messages or specific reply commands on messages with Zephyr Cc: lists. With a CVSS score of 7.5, this vulnerability is considered high severity, requiring no authentication and low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.4.1CPE matchmatch criteria
cpe:2.3:a:barnowl:barnowl:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:barnowl:barnowl:1.0.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:barnowl:barnowl:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:barnowl:barnowl:1.0.2:*:*:*:*:*:*:*
1.0.2.1CPE matchmatch criteria
cpe:2.3:a:barnowl:barnowl:1.0.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.38%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0338 is in the 78th percentile among its peer group of 51,485 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, 0.1 Mastodon, and 0.4 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

barnowl.mit.edu / browser/ChangeLog
Vendor Advisory
barnowl.mit.edu / wiki/barnowl-1.0.5-announce
Vendor Advisory
bugs.debian.org / 515118
bugs.launchpad.net / ubuntu/+source/owl/+bug/329165
exchange.xforce.ibmcloud.com / vulnerabilities/48824
mail-archive.com / debian-testing-security-announce%40lists.debian.org/msg00173.html