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CVE-2003-0795

25
FAUCET Score

CVE-2003-0795 describes a denial-of-service vulnerability in the vty layer of Quagga before 0.96.4 and Zebra 0.93b and earlier. This flaw allows remote attackers to crash affected systems by sending a malformed telnet command to the CLI port, potentially leading to a null dereference. Rated with a CVSS score of 5.0, this vulnerability is easily exploitable over the network with low attack complexity and no authentication required, resulting in partial availability impact. While not actively exploited in the wild or on the CISA KEV catalog, public exploit code exists, though there is minimal community discussion or media coverage surrounding this older CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.91aCPE matchmatch criteria
cpe:2.3:a:gnu:zebra:0.91a:*:*:*:*:*:*:*
0.92aCPE matchmatch criteria
cpe:2.3:a:gnu:zebra:0.92a:*:*:*:*:*:*:*
0.93aCPE matchmatch criteria
cpe:2.3:a:gnu:zebra:0.93a:*:*:*:*:*:*:*
0.93bCPE matchmatch criteria
cpe:2.3:a:gnu:zebra:0.93b:*:*:*:*:*:*:*
<= 0.96.3CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
8.23%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-23375 · Nov 12, 2003
This CVE's current EPSS score of 0.0823 is in the 93rd percentile among its peer group of 23,701 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 (7)

debianpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0795Important

security flaw

Oct 15, 2003

References

marc.info
secunia.com / advisories/10563
Vendor Advisory
debian.org / security/2004/dsa-415
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-305.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-307.html
PatchVendor Advisory