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CVE-2012-4791

19
FAUCET Score

CVE-2012-4791 describes a denial-of-service vulnerability affecting Microsoft Exchange Server 2007 SP3 and 2010 SP1/SP2. An authenticated remote attacker can exploit this by subscribing to a specially crafted RSS feed, leading to a hang of the Information Store service. The vulnerability has a CVSS score of 3.5, indicating a medium attack complexity and partial availability impact, with no confidentiality or integrity impact. Despite a high FAUCET Risk Score, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2007:sp3:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2010:sp1:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2010:sp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.5LOW

AV:N/AC:M/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
13.44%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1344 is in the 100th percentile among its peer group of 1,637 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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

docs.microsoft.com / en-us/security-updates/securitybulletins/2012/ms12-080
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16158
securityfocus.com / bid/56836
us-cert.gov / cas/techalerts/TA12-346A.html
US Government Resource