Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object, as exploited in the wild in March 2010, aka "Uninitialized Memory Corruption Vulnerability."
CVE-2010-0806
“▲” beside the score: it is higher than NVD's CVSS score.
Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-05-20), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. The 9.0 is the floor for confirmed exploitation, not an impact rating: this CVE's impact severity (EG Severity) is CVSS 8.8 HIGH under GitHub Security Advisory CVSS. Confidence: HIGH.
Also known asEUVD-2010-0832 (ENISA EUVD) · GHSA-f5rx-x946-jm33 (GitHub Security Advisories)Source: ENISA EUVD
- Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).
- CVSS v3
- 8.8
- EG Score
- 9.0CRITICALhigh confidence
- EG Risk
- 80EG Risk 80/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity88% × 45%Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation100% × 40%Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low, sooner than that at medium and as soon as possible at high mission impact. - EPSS PROB
- 82%
- EPSS %ILE
- 99th
- KEV
- ⚠ Exploited
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is the CISA KEV floor for confirmed exploitation, not an impact rating: its impact severity (EG Severity) is CVSS 8.8 HIGH.
- EG Severity
- 8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 82% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Attend at medium mission impactTrack at low, Attend at medium and Act at high mission impact.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.
A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low, sooner than that at medium and as soon as possible at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.
No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.
The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
CISA required action“Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.”
Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://learn.microsoft.com/en-us/security-updates/securityadvisories/2010/981374 · https://nvd.nist.gov/vuln/detail/CVE-2010-0806
Published
March 10, 2010
Last Modified
May 21, 2026
Advisory Details (6)
Auto-updated Nov 2, 2026VUPEN Security - Vulnerability Research and Intelligence
http://www.vupen.com/english/advisories/2010/0744VUPEN Security - Vulnerability Research and Intelligence
http://www.vupen.com/english/advisories/2010/0567VU#744549 - Microsoft Internet Explorer iepeers.dll use-after-free vulnerability
http://www.kb.cert.org/vuls/id/744549Vendor Advisories for CVE-2010-0806(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 18× in last 7d / 118× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 1,059 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 959 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 09:14 UTCEG score recompute
- 2026-11-02 09:14 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-11-01 10:17 UTCEG score recompute
- 2026-11-01 10:17 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-31 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-31 11:18 UTCEG score recompute
- 2026-10-31 11:18 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-30 12:21 UTCEG score recompute
- 2026-10-30 12:21 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-29 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-29 13:24 UTCEG score recompute
- 2026-10-29 13:24 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-28 14:27 UTCEG score recompute
- 2026-10-28 14:26 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-27 16:25 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-27 15:27 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-26 16:28 UTCEG score recompute
- 2026-10-26 16:27 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-25 17:30 UTCEG score recompute
- 2026-10-25 17:30 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-25 16:25 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-24 18:33 UTCEG score recompute
- 2026-10-24 18:33 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-23 19:36 UTCEG score recompute
- 2026-10-23 19:36 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
Show 75 moreShow fewer
- 2026-10-23 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-22 20:39 UTCEG score recompute
- 2026-10-22 20:38 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-21 21:42 UTCEG score recompute
- 2026-10-21 21:42 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-21 16:25 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-20 22:45 UTCEG score recompute
- 2026-10-20 22:45 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-20 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-19 23:47 UTCEG score recompute
- 2026-10-19 23:47 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-19 00:50 UTCEG score recompute
- 2026-10-19 00:50 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-18 11:39 UTCEG score recompute
- 2026-10-18 01:53 UTCEG score recompute
- 2026-10-18 01:52 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-17 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-17 02:53 UTCEG score recompute
- 2026-10-17 02:53 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-16 03:55 UTCEG score recompute
- 2026-10-16 03:55 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-15 04:58 UTCEG score recompute
- 2026-10-15 04:58 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-14 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-14 06:01 UTCEG score recompute
- 2026-10-14 06:01 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-13 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-13 07:03 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-12 21:42 UTCEG score recompute
- 2026-10-12 16:26 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-12 08:05 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-12 04:15 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-12 00:22 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-11 20:30 UTCEG score recompute
- 2026-10-11 20:30 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-11 16:40 UTCEG score recompute
- 2026-10-11 16:40 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-11 13:38 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-11 12:49 UTCEG score recompute
- 2026-10-11 12:49 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-11 08:59 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-11 05:07 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-11 01:18 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-10 21:24 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-10 17:30 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-10 13:41 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-10 09:52 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-10 06:01 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-10 02:10 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-09 22:21 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-09 18:32 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-09 14:41 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-09 10:48 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-09 06:58 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-09 03:08 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 23:18 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 19:29 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 15:39 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 11:49 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 07:59 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 04:08 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-08 00:19 UTCEG score recompute
- 2026-10-08 00:19 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-07 23:38 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-07 20:29 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-07 16:39 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-07 12:48 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-07 08:58 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-07 05:08 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-07 01:18 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-06 21:28 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-06 17:39 UTCEG score recompute
- 2026-10-06 17:39 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
- 2026-10-06 15:09 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-06 13:50 UTCGHSA enrichmentGHSA-f5rx-x946-jm33 · GitHub severity HIGH · GitHub CVSS 8.8
Publicly available exploits
(3 references)Public exploit code is referenced for this CVE (1 Metasploit module, 2 Exploit-DB entries). No release with the fix is confirmed, so defenders should restrict or isolate affected systems accordingly until one is applied.
- Exploit-DBEDB-16590✓ verifiedPublished Dec 14, 2010
Microsoft Internet Explorer - DHTML Behaviour Use-After-Free (MS10-018) (Metasploit)
Open source ↗ - Metasploitexploit/windows/browser/ms10_018_ie_behaviors✓ verifiedPublished Mar 31, 2010
MS10-018 Microsoft Internet Explorer DHTML Behaviors Use After Free
Open source ↗ - Exploit-DBEDB-11683✓ verifiedPublished Mar 10, 2010
Microsoft Internet Explorer - 'iepeers.dll' Use-After-Free (Metasploit)
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-416
- CVE-2010-0050EG 8.8EPSS p96HIGH
- CVE-2010-0302EG 7.5HIGH
- CVE-2010-0629EG 6.5EPSS p93MEDIUM
- CVE-2010-0248NVD 8.1EG 8.5EPSS p99HIGH
- CVE-2010-0378EG 8.8EPSS p94HIGH
- CVE-2010-0249NVD 8.8EG 9.0 KEVEPSS p100CRITICAL
- CVE-2009-4324NVD 7.8EG 9.0 KEVEPSS p100CRITICAL
- CVE-2009-3671EG 8.1EPSS p98HIGH
- CVE-2010-2300EG 10.0EPSS p95HIGH
- CVE-2010-2302EG 10.0HIGH
Frequently asked(6)
What is CVE-2010-0806?
When was CVE-2010-0806 made public?
Is CVE-2010-0806 actively exploited?
What is the CVSS score of CVE-2010-0806?
Which products are affected by CVE-2010-0806?
How do I remediate CVE-2010-0806?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2010-0806
Is Your Infrastructure Affected by CVE-2010-0806?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.