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-2012-0877

24
FAUCET Score

CVE-2012-0877 describes a CPU usage Denial of Service vulnerability in PyXML, affecting various Python and Red Hat Enterprise Linux products. This high-severity vulnerability (CVSS 7.5) can be exploited remotely with low attack complexity, allowing an unauthenticated attacker to cause a denial of service by triggering hash table collisions. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:python:pyxml:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:enterprise_virtualization_hypervisor:-:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.91%
Probability of exploitation in next 30 days
EPSS Percentile
77.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0191 is in the 61st percentile among its peer group of 51,455 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

Vendor Patches (2)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: PyXML
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: PyXML

Vendor Advisories (1)

redhatCVE-2012-0877Moderate

PyXML: hash table collisions CPU usage DoS (oCERT-2011-003)

Jul 8, 2014

References

access.redhat.com / security/cve/cve-2012-0877
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
seclists.org / oss-sec/2014/q3/96
Mailing ListThird Party Advisory
security-tracker.debian.org / tracker/CVE-2012-0877
Third Party Advisory
openwall.com / lists/oss-security/2014/07/08/11
Mailing ListThird Party Advisory