Actively exploited · Published Jun 13, 2012 · Assigned by microsoft

CVE-2012-1889

High 8.8 Exploited

In plain English

A high-severity out-of-bounds write in XML Core Services from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on June 8, 2022). The chance it is exploited in the next 30 days is estimated at 83.5% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. Apply updates per vendor instructions.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)83.5%top 0.3% of all CVEs

Exploited in the wildYesCISA KEV since Jun 8, 2022

Attack tooling2Metasploit, Public PoC

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Jun 22, 2022.

Official description

Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

TA12-192A third-party-advisory, x_refsource_CERT
http://technet.microsoft.com/security/advisory/2719615 x_refsource_CONFIRM
oval:org.mitre.oval:def:15195 vdb-entry, signature, x_refsource_OVAL
MS12-043 vendor-advisory, x_refsource_MS
TA12-174A third-party-advisory, x_refsource_CERT
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1889 government-resource