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CVE-2005-0177

20
FAUCET Score

CVE-2005-0177 describes a buffer overflow vulnerability in the nls_ascii.c component of the Linux kernel, specifically affecting versions prior to 2.6.8.1. This flaw stems from an incorrect table size, allowing an unauthenticated attacker to trigger a denial of service by crashing the kernel. The vulnerability carries a CVSS score of 7.8, indicating high severity due to its network-based attack vector and complete availability impact. There is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.8.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.8.1:*:*:*:*:*:*:*

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
2.42%
Probability of exploitation in next 30 days
EPSS Percentile
82.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0242 is in the 69th percentile among its peer group of 51,506 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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-5.0.3.EL
View patch

Vendor Advisories (1)

redhatCVE-2005-0177Important

security flaw

Feb 15, 2005

References

distro.conectiva.com.br / atualizacoes/index.php
PatchVendor Advisory
linux.bkbits.net / linux-2.6/cset%4041e2bfbeOiXFga62XrBhzm7Kv9QDmQ
marc.info
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10298
redhat.com / support/errata/RHSA-2005-092.html
PatchVendor Advisory
securityfocus.com / bid/12598