Buffer overflow in Microsoft Expression Web
CVE-2012-1889
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.835 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.835 · newest: 0.835 · change: 0.000
Affected products
- Microsoft Expression Web — versions 2, sp1
- Microsoft Groove — versions 2007
- Microsoft Groove Server — versions 2007
- Microsoft Office — versions 2003, 2007
- Microsoft Office Compatibility Pack
- Microsoft Office Word Viewer
- Microsoft Sharepoint Server — versions 2007
- Microsoft Windows 7
- Microsoft Windows 8
- Microsoft Windows Server 2003
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- www.us-cert.gov/cas/techalerts/TA12-192A.html (US Government Resource, Third Party Advisory, third-party-advisory)
- technet.microsoft.com/security/advisory/2719615 (Vendor Advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:15195 (Broken Link, signature, vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-043 (vendor-advisory, Patch, Vendor Advisory)
- www.us-cert.gov/cas/techalerts/TA12-174A.html (US Government Resource, Third Party Advisory, third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2012-1889?
- CVE-2012-1889 is a high-severity vulnerability in Microsoft Expression Web, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2012-06-13.
- How severe is CVE-2012-1889?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2012-1889 known to be exploited?
- Yes. CVE-2012-1889 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 14 public proof-of-concept repositories are indexed.