4.9

CVE-2006-1522: linux linux_kernel Improper Input Validation

Modified
Published 10-04-2006Last modified 07-08-2024

Vulnerability summary

CVE-2006-1522 is a medium (CVSS 4.9) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.9, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.9/10
010
Medium · v2.0 (NVD)
EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2006:0493

Timeline

  1. 10-04-2006
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

The sys_add_key function in the keyring code in Linux kernel 2.6.16.1 and 2.6.17-rc1, and possibly earlier versions, allows local users to cause a denial of service (OOPS) via keyctl requests that add a key to a user key instead of a keyring key, which causes an invalid dereference in the __keyring_search_one function.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.45% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.

Linux1 product

1 vendor · 1 product

References

20 links
Show all 20 references