Microsoft Crypto API 5.131.2600.2180 through 6.0, as used in Outlook, Windows Live Mail, and Office 2007, performs Certificate Revocation Li
Microsoft Crypto API 5.131.2600.2180 through 6.0, as used in Outlook, Windows Live Mail, and Office 2007, performs Certificate Revocation List (CRL) checks by using an arbitrary URL from a certificate embedded in a (1) S/MIME e-mail message or (2) signed document, which allows remote attackers to obtain reading times and IP addresses of recipients, and port-scan results, via a crafted certificate with an Authority Information Access (AIA) extension.
- Published
- Jul 7, 2008
- Updated
- Jun 16, 2026
- EPSS
- 17.4% · 97th percentile
- CWE
- —
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Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 5 / 30 · 17.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | access | cpe:2.3:a:microsoft:access |
| microsoft | excel | cpe:2.3:a:microsoft:excel |
| microsoft | frontpage | cpe:2.3:a:microsoft:frontpage |
| microsoft | groove | cpe:2.3:a:microsoft:groove |
| microsoft | infopath | cpe:2.3:a:microsoft:infopath |
| microsoft | office | cpe:2.3:a:microsoft:office |
| microsoft | office communicator | cpe:2.3:a:microsoft:office_communicator |
| microsoft | onenote | cpe:2.3:a:microsoft:onenote |
| microsoft | outlook | cpe:2.3:a:microsoft:outlook |
| microsoft | powerpoint | cpe:2.3:a:microsoft:powerpoint |
| microsoft | project professional | cpe:2.3:a:microsoft:project_professional |
| microsoft | project standard | cpe:2.3:a:microsoft:project_standard |
and 5 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft access2007
- microsoft excel2003
- microsoft excel2007
- microsoft frontpage2003
- microsoft groove2007
- microsoft infopath2003
- microsoft infopath2007
- microsoft office2007
- microsoft office communicator2007
- microsoft onenote2003
- microsoft outlook2003
- microsoft outlook2007
- microsoft powerpoint2003
- microsoft powerpoint2007
- microsoft project professional2007
- microsoft project standard2007
- microsoft publisher2003
- microsoft publisher2007
- microsoft sharepoint designer2007
- microsoft visio professional2007
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2007-0671Unspecified vulnerability in Microsoft Excel 2000, XP, 2003, and 2004 for Mac, and possibly other Office products, allows remote user-assistKEV78This week
- CVE-2010-0814The Microsoft Access Wizard Controls in ACCWIZ.dll in Microsoft Office Access 2003 SP3 and 2007 SP1 and SP2 do not properly interact with th44Plan
- CVE-2013-3157Microsoft Access 2007 SP3, 2010 SP1 and SP2, and 2013 in Microsoft Office allows remote attackers to execute arbitrary code or cause a denia43Plan
- CVE-2013-3156Microsoft Access 2007 SP3, 2010 SP1 and SP2, and 2013 in Microsoft Office allows remote attackers to execute arbitrary code or cause a denia43Plan
- CVE-2013-3155Microsoft Access 2007 SP3, 2010 SP1 and SP2, and 2013 in Microsoft Office allows remote attackers to execute arbitrary code or cause a denia43Plan
- CVE-2010-1881The FieldList ActiveX control in the Microsoft Access Wizard Controls in ACCWIZ.dll in Microsoft Office Access 2003 SP3 does not properly in43Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- securityreason.com/securityalert/3978
- www.securityfocus.com/archive/1/493947/100/0/threaded
- www.securityfocus.com/archive/1/494101/100/0/threaded
- www.securityfocus.com/bid/28548
- www.securitytracker.com/id?1019736
- www.securitytracker.com/id?1019737
- www.securitytracker.com/id?1019738
- www.cynops.de/advisories/AKLINK-SA-2008-002.txt
- www.cynops.de/advisories/AKLINK-SA-2008-003.txt
- www.cynops.de/advisories/AKLINK-SA-2008-004.txt
- www.cynops.de/techzone/http_over_x509.html
- www.klink.name/security/aklink-sa-2008-002-outlook-smime.txt
- www.klink.name/security/aklink-sa-2008-003-live-mail-smime.txt
- www.klink.name/security/aklink-sa-2008-004-office2007-signatures.txt
Vendor advisories and official records. Exploit/PoC links are deliberately left out.