Page generated: 09 Nov 2026, 04:06 UTC
CVE-2021-26411
Internet Explorer Memory Corruption Vulnerability
CVSS 8.8 (HIGH) KEV: KNOWN CATALOG
Attention and evidence
HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.7/10
General review priority; not probability
Evidence confidence: Exploitation recorded
Sources: 10 documents and public datasets.
Hype components
Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100
Sources and documents
Bitdefender
Press · 05 Jun 2025, 07:00 · US Offers $10 Million Reward for Information on RedLine Malware Creator Maxim Rudometov - Bitdefender
BleepingComputer
Press · 18 Oct 2023, 07:00 · MATA malware framework exploits EDR in attacks on defense firms - BleepingComputer
The Hacker News
Press · 30 Nov 2022, 08:00 · North Korea Hackers Using New "Dolphin" Backdoor to Spy on South Korean Targets - The Hacker News
Bitdefender
Press · 27 Apr 2022, 07:00 · RedLine Stealer Resurfaces in Fresh RIG Exploit Kit Campaign - Bitdefender
The Record from Recorded Future News
Press · 26 Apr 2022, 07:00 · More than 10,000 Redline malware attacks in April targeting Internet Explorer vulnerability - The Record from Recorded Future News
Score evolution
● Hype ● Reality
Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.
First record: hype 0.0 · reality 8.7 (2026-11-02 15:12). The curve appears once the score changes.
Public exploit evidence
0
Public exploit entries / repo candidates
Evidence context and dated references
Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.
Evidence in context
- Confidence in exploitation evidence
- Exploitation recorded
- Priority basis
- Recorded exploitation; CVSS 8.8; EPSS 81.7%
- Attention, last 30 days
- 0 distinct story titles; 0 press documents; 0 publisher domains.
- Technical potential
- network access, no prior privileges, user interaction.
- Observed activity
- Exploitation recorded in CISA KEV.
- Known scale
- Not quantified.
- Evidence confidence basis
- Trusted exploitation confirmation
Score evaluated: 2026-11-05 13:58:24.835925+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z
Source event timeline
First press mention
10 Mar 2021, 08:00
Published
11 Mar 2021, 15:07
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
05 Jun 2025, 07:00
Score calculated
05 Nov 2026, 13:58