4.3

CVE-2011-1221: realnetworks realplayer

Modified
Published 04-10-2011Last modified 17-09-2024

Vulnerability summary

CVE-2011-1221 is a medium (CVSS 4.3) vulnerability in realnetworks realplayer. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 58.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
0.87%
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. 04-10-2011
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Cross-zone scripting vulnerability in the RealPlayer ActiveX control in RealNetworks RealPlayer 11.0 through 11.1 and 14.0.0 through 14.0.5, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.0 through 2.1.5 allows remote attackers to inject arbitrary web script or HTML in the Local Zone via a local HTML document, a different vulnerability than CVE-2011-2947.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.87%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.87% 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.

Realnetworks2 products
  • realplayer11.0 | 11.1 | 14.0.0 | 14.0.1 | 14.0.2 | 14.0.3 | 14.0.4 | 14.0.5 | 2.0 | 2.1 | 2.1.2 | 2.1.3 | 2.1.4 | 2.1.5
  • realplayer_sp1.0.0 | 1.0.1 | 1.0.2 | 1.0.5 | 1.1 | 1.1.1 | 1.1.2 | 1.1.3 | 1.1.4 | 1.1.5

1 vendor · 2 products

References

1 links