activePDF WebGrabber version 3.8.2.0 contains a stack-based buffer overflow vulnerability in the GetStatus() method of the APWebGrb.ocx ActiveX control. By passing an overly long string to this method, a remote attacker can execute arbitrary code in the context of the vulnerable process. Although the control is not marked safe for scripting, exploitation is possible via crafted HTML content in Internet Explorer under permissive security settings.
CVE-2008-20001
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 61.2%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 60.2%
- KEV
- Not listed
Published
August 30, 2025
Last Modified
April 15, 2026
References (6)
- disclosure@vulncheckhttps://documentation.activepdf.com/WebGrabber_GS/b_installation/New_Installation.html
- disclosure@vulncheckhttps://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/activepdf_webgrabber.rb
- disclosure@vulncheckhttps://support.activepdf.com/support/solutions/35000139131
- disclosure@vulncheckhttps://web.archive.org/web/20081219180353/http://www.activepdf.com/products/serverproducts/webgrabber/
- disclosure@vulncheckhttps://www.exploit-db.com/exploits/16635
- disclosure@vulncheckhttps://www.vulncheck.com/advisories/activepdf-webgrabber-activex-control-buffer-overflow
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 31× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
- 2026-07-16 16:58 UTCEPSS rescore
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- 2026-06-28 14:03 UTCEPSS rescore
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- 2026-06-25 13:46 UTCEPSS rescore
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- 2026-06-23 21:29 UTCEPSS rescore
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- 2026-06-21 14:53 UTCEPSS rescore
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- 2026-06-19 19:22 UTCEPSS rescore
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- 2026-06-12 23:08 UTCEPSS rescore
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- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 15:35 UTCEG score recompute▲ 7.50
- 2026-06-08 15:35 UTCGHSA enrichment
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
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- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 08:57 UTCEG score recompute
- 2026-05-21 08:57 UTCGHSA enrichment
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Metasploitexploit/windows/fileformat/activepdf_webgrabber✓ verifiedFirst seen Aug 26, 2008
activePDF WebGrabber ActiveX Control Buffer Overflow
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-121
- CVE-2012-10058EG 10.0CRITICAL
- CVE-2010-20113EG 9.8CRITICAL
- CVE-2010-20121EG 9.8CRITICAL
- CVE-2012-10060EG 9.8CRITICAL
- CVE-2012-10023EG 9.8CRITICAL
- CVE-2013-10042EG 9.8CRITICAL
- CVE-2012-10021EG 9.8CRITICAL
- CVE-2014-125117EG 9.8EPSS 91%CRITICAL
- CVE-2017-14854NVD 9.1EG 9.8EPSS 94%CRITICAL
- CVE-2015-1006EG 9.8EPSS 92%CRITICAL
Frequently asked(5)
What is CVE-2008-20001?
When was CVE-2008-20001 disclosed?
Is CVE-2008-20001 actively exploited?
What is the CVSS score of CVE-2008-20001?
How do I remediate CVE-2008-20001?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2008-20001
Is Your Infrastructure Affected by CVE-2008-20001?
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