Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2003-0159

25
FAUCET Score

CVE-2003-0159 describes a heap-based buffer overflow in the NTLMSSP code of Ethereal versions 0.9.9 and earlier. This vulnerability allows remote attackers to trigger a denial of service and potentially execute arbitrary code on affected systems. With a CVSS score of 7.5, it is considered highly severe due to its network attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impact. While there is no evidence of active exploitation, nor readily available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
0.8.18CPE matchmatch criteria
cpe:2.3:a:ethereal_group:ethereal:0.8.18:*:*:*:*:*:*:*
0.9.0CPE matchmatch criteria
cpe:2.3:a:ethereal_group:ethereal:0.9.0:*:*:*:*:*:*:*
0.9.1CPE matchmatch criteria
cpe:2.3:a:ethereal_group:ethereal:0.9.1:*:*:*:*:*:*:*
0.9.2CPE matchmatch criteria
cpe:2.3:a:ethereal_group:ethereal:0.9.2:*:*:*:*:*:*:*
0.9.3CPE matchmatch criteria
cpe:2.3:a:ethereal_group:ethereal:0.9.3:*:*:*:*:*:*:*

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
3.79%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0379 is in the 80th percentile among its peer group of 51,485 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS 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-2003-0159Moderate

security flaw

Mar 9, 2003

References

marc.info
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A55
ethereal.com / appnotes/enpa-sa-00008.html
PatchVendor AdvisoryURL Repurposed
mandriva.com / security/advisories
novell.com / linux/security/advisories/2003_019_ethereal.html
redhat.com / support/errata/RHSA-2003-077.html
securityfocus.com / bid/7050
PatchVendor Advisory