CVE-2010-3962Active Exploitation(microsoft / internet_explorer)

HIGHCVSS 8.1 · HIGHCISA KEV

Exploitation ongoing with high activity in latest observed window (7 mentions)

Immediate actions

Prioritize remediation for microsoft internet_explorer systems immediately
Assume compromise if assets are exposed
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

Use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute, aka an "invalid flag reference" issue or "Uninitialized Memory Corruption Vulnerability," as exploited in the wild in November 2010.

microsoft CVEs Back to dashboard

7.5/ 10 priority

Sources & remediation

Listed in the CISA Known Exploited Vulnerabilities catalog. Federal remediation due date: 2025-10-27. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Patch / fix

Vendor / third-party advisories

Other references

Weakness type (CWE)

CWE-416

Priority

HIGH

Exploitation

ACTIVE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

internet_explorer
windows_7
windows_server_2003
windows_server_2008

Threat summary

Active exploitation appears in 6 classified signals
Public PoC and exploit tooling are both present
7 mentions across 1 observed day

What's happening

Active exploitation reported across 6 signals
Exploit tool or code specified in 1 signal
PoC mentioned or linked in 1 signal
Technical details provided in 1 signal
General: 1 classified signal
7 total mentions across 1 day

Affected systems

Vendors

microsoft

Products

internet_explorerwindows_7windows_server_2003windows_server_2008windows_vistawindows_xp

5 versions affected across 6 products

Deep dive

Activity timeline7 mentions / 1d

Signal classification2 categories

Active Exploitation

685.7%

General

114.3%

Referenced assets2 URLs

By indicator

Full discourse7 posts

Lyrie.ai@lyrie_ai161d
Active Exploitation
00:14 UTC: Thread live on @lyrie_ai. What happened CISA added CVE-2010-3962 to the Known Exploited Vulnerabilities (KEV) catalog for Microsoft Internet Explorer, indicating confirmed exploitation in the wild (CVE-2010-3962) CISA KEV.
Post summary
CISA has added CVE-2010-3962 to its KEV catalog, confirming the vulnerability in Microsoft Internet Explorer is actively exploited in the wild, with no PoC, exploit code, patch, or detailed technical information provided.
2000028
152 followersView on X
CVETrends@CVEShield161d
General
Top 5 Trending CVEs: 1 - CVE-2026-31431 2 - CVE-2026-41940 3 - CVE-2018-17144 4 - CVE-2014-0160 5 - CVE-2010-3962 #cve #cvetrends #cveshield #cybersecurity https://www.cveshield.com/dashboard
Post summary
The post merely lists a set of trending CVEs without offering additional information such as proof of concept, exploit details, or patch guidance.
00010173
1.7K followersView on X
Lyrie.ai@lyrie_ai161d
Active Exploitation
03:00 UTC: First exploit attempt in the wild. What happened CISA added CVE-2010-3962 to the Known Exploited Vulnerabilities (KEV) catalog for Microsoft Internet Explorer, indicating confirmed exploitation in the wild (CVE-2010-3962) CISA KEV.
Post summary
CISA confirms CVE-2010-3962 is being actively exploited in the wild, as evidenced by its inclusion in the KEV catalog.
1000035
152 followersView on X
Lyrie.ai@lyrie_ai161d
Active Exploitation
00:03 UTC: Lyrie Sentinel flagged it. What happened CISA added CVE-2010-3962 to the Known Exploited Vulnerabilities (KEV) catalog for Microsoft Internet Explorer, indicating confirmed exploitation in the wild (CVE-2010-3962) CISA KEV.
Post summary
CISA confirms CVE-2010-3962 is actively exploited in the wild, yet the note provides no PoC, exploit code, patch, or technical specifics.
1000025
152 followersView on X
Lyrie.ai@lyrie_ai161d
Active Exploitation
00:11 UTC: GPT-5 enrichment complete. 763 words. 3 citations. What happened CISA added CVE-2010-3962 to the Known Exploited Vulnerabilities (KEV) catalog for Microsoft Internet Explorer, indicating confirmed exploitation in the wild (CVE-2010-3962) CISA KEV.
Post summary
CISA confirms CVE-2010-3962 is being exploited in the wild; no PoC, exploit code, or patch information is provided.
1000025
152 followersView on X
Lyrie.ai@lyrie_ai161d
Active Exploitation
00:00 UTC: CVE-2010-3962 disclosed. CISA: CVE-2010-3962 added to Known Exploited Vulnerabilities — Microsoft Internet Explorer What happened CISA added CVE-2010-3962 to the Known Exploited Vulnerabilities (KEV) catalog for Microsoft Internet Explorer, indicating confirmed…
Post summary
CISA has identified CVE-2010-3962 as being actively exploited in the wild, adding it to its Known Exploited Vulnerabilities catalog for Microsoft Internet Explorer.
1000031
152 followersView on X
Lyrie.ai@lyrie_ai161d
Active Exploitation
https://research.lyrie.ai/research/active-exploit-cve-2010-3962-internet-explorer #lyrie #cybersecurity #CVE #threatintel #zerodayattack
Post summary
The linked research claims that CVE‑2010‑3962 is actively exploited in Internet Explorer, providing PoC and exploit details, though no patch or mitigation is referenced.
0000030
152 followersView on X

CPE platform detail13 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

13 of 13 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	internet_explorer	6	-	-
App	microsoft	internet_explorer	7	-	-
App	microsoft	internet_explorer	8	-	-
OS	microsoft	windows_7	-	-	-
OS	microsoft	windows_server_2003	-	-	-
OS	microsoft	windows_server_2008	-	-	-
OS	microsoft	windows_server_2008	-	-	-
OS	microsoft	windows_server_2008	r2	-	-
OS	microsoft	windows_vista	-	-	-
OS	microsoft	windows_vista	-	-	-
OS	microsoft	windows_xp	-	-	x64
OS	microsoft	windows_xp	-	-	x64
OS	microsoft	windows_xp	-	-	-