10

CVE-2011-4256: realnetworks realplayer Improper Control of Generation of Code

Modified
Published 24-11-2011Last modified 16-09-2024

Vulnerability summary

CVE-2011-4256 is a high (CVSS 10.0) Improper Control of Generation of Code vulnerability in realnetworks realplayer. EPSS estimates a 4.25% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 10, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
4.25%
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

Timeline

  1. 24-11-2011
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

The RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an unspecified index value, which allows remote attackers to execute arbitrary code via unknown vectors.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

4.25%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

No change 0.00 pp

From 4.25% 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: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Realnetworks1 product
  • realplayer≤ 12.0.0.1701 | 7.0 | 8.0 | 10.0 | 10.0.0.305 | 10.0.0.331 | 10.1 | 12.0.0.1569 | ≤ 14.0.7 | 4 | 5 | 6 | 7 | 8 | 10.5 | 11.0 | 11.0.1 | 11.0.2 | 11.0.2.1744 | 11.0.2.2315 | 11.0.3 | 11.0.4 | 11.0.5 | 11.1 | 11.1.3 | 11_build_6.0.14.748 | 12.0.0.1444 | 12.0.0.1548 | 14.0.0 | 14.0.1 | 14.0.1.609 | 14.0.1.633 | 14.0.2 | 14.0.3 | 14.0.4 | 14.0.5 | 14.0.6

1 vendor · 1 product

References

1 links