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-2011-3263

18
FAUCET Score

CVE-2011-3263 describes a denial-of-service vulnerability in Zabbix agentd versions prior to 1.8.6 and 1.9.4. An unauthenticated attacker can trigger high CPU consumption by executing the vfs.file.cksum command on a special device like /dev/urandom. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.5CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1:beta10:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1:beta11:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1:beta12:*:*:*:*:*:*

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
1.29%
Probability of exploitation in next 30 days
EPSS Percentile
67.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0129 is in the 47th percentile among its peer group of 23,690 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/69378
support.zabbix.com / browse/ZBX-3794
Exploit
zabbix.com / rn1.8.6.php
Patch