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CVE-2003-1003

20
FAUCET Score

CVE-2003-1003 describes a denial-of-service vulnerability affecting Cisco PIX firewalls running versions 5.x.x and 6.3.1 or earlier, specifically when SNMPv3 is enabled. An unauthenticated remote attacker can crash and reload the device by sending a specially crafted SNMPv3 message. This vulnerability carries a high severity CVSS score of 7.8, indicating a network-based attack with low complexity leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.2.2_.111CPE matchmatch criteria
cpe:2.3:a:cisco:pix_firewall:6.2.2_.111:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:5.0:*:*:*:*:*:*:*
5.1CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:5.1:*:*:*:*:*:*:*
5.1\(4\)CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:5.1\(4\):*:*:*:*:*:*:*
5.1\(4.206\)CPE matchmatch criteria
cpe:2.3:o:cisco:pix_firewall_software:5.1\(4.206\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 50th percentile among its peer group of 51,455 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

cisco.com / warp/public/707/cisco-sa-20031215-pix.shtml
PatchVendor Advisory