Page generated: 09 Nov 2026, 10:07 UTC
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CVE-2026-76461

A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to insufficient validatio…

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A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to insufficient validation in the email parsing logic. An attacker could exploit this vulnerability by sending a crafted email message that contains malicious SQL statements through an affected device. A successful exploit could allow the attacker to execute arbitrary SQL statements, leading to command execution with root privileges on the underlying operating system.
CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
1.1/10
REALITY · THREAT PRIORITY
8.6/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 29.54%: +0.15

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 22 documents and public datasets.

Hype components

Headline sample (25%)
30/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL10/100

Sources and documents

Cisco Security Advisory
Technical advisory · 03 Nov 2026, 17:05 · Cisco Secure Email Gateway SQL Injection Vulnerability
The Hacker News
Press · 14 Oct 2026, 07:00 · Cisco Warns of Active Attacks Exploiting New Critical Secure Email Gateway Vulnerability - The Hacker News
The Register
Press · 17 Sep 2026, 07:00 · Cisco drops another exploited zero-day, this time a perfect 10 - The Register
Cybersecurity Dive
Press · 16 Sep 2026, 07:00 · Hackers exploit zero-day flaw in Cisco email gateway - Cybersecurity Dive
SOCRadar
Press · 16 Sep 2026, 07:00 · CVE-2026-76461: Cisco Email Gateway Flaw Exploited - SOCRadar
See all 22 source documents
Rescana
Press · 16 Sep 2026, 07:00 · Active Exploitation Alert: Cisco Secure Email Gateway AsyncOS SQL Injection (CVE-2026-76461) Added to CISA KEV — Unauthenticated Root via Crafted Email - Rescana
eSecurity Planet
Press · 16 Sep 2026, 07:00 · Cisco Secure Email Gateway Zero-Day Exploited for Root Command Execution - eSecurity Planet
CyberSecurityNews
Press · 15 Sep 2026, 07:00 · Cisco Secure Email Gateway 0-day Vulnerability Actively Exploited in the Wild to Run Malicious Code - CyberSecurityNews
BetaNews
Press · 15 Sep 2026, 07:00 · Cisco Secure Email Gateway flaw exploited for root access - BetaNews
Arctic Wolf
Press · 15 Sep 2026, 07:00 · Recommendations for CVE-2026-76461 - Arctic Wolf
Hong Kong Computer Emergency Response Team Coordination Centre
Press · 15 Sep 2026, 07:00 · Cisco Products Multiple Vulnerabilities - Hong Kong Computer Emergency Response Team Coordination Centre
BleepingComputer
Press · 15 Sep 2026, 07:00 · Cisco patches Secure Email Gateway zero-day exploited in attacks - BleepingComputer
Rapid7
Press · 15 Sep 2026, 07:00 · CVE-2026-76461: Critical Cisco Secure Email Gateway Vulnerability Exploited in the Wild - Rapid7
The Hacker News
Press · 15 Sep 2026, 07:00 · Cisco Secure Email Gateway Flaw Exploited in the Wild, Enables Root Command Execution - The Hacker News
Help Net Security
Press · 15 Sep 2026, 07:00 · Cisco patches actively exploited email gateway zero-day (CVE-2026-76461) - Help Net Security
SOC Prime
Press · 15 Sep 2026, 07:00 · CVE-2026-76461: Critical Cisco Secure Email Gateway Zero-Day Enables Root RCE - SOC Prime
SecurityWeek
Press · 15 Sep 2026, 07:00 · Root RCE Zero-Day in Cisco Secure Email Gateway Under Active Exploitation - SecurityWeek
Sophos
Press · 15 Sep 2026, 07:00 · Cisco Secure Email Gateway vulnerability (CVE-2026-76461) in active exploitation - Sophos
CyberScoop
Press · 15 Sep 2026, 07:00 · Cisco warns customers of actively exploited zero-day in email gateways - CyberScoop
Arctic Wolf
Press · 14 Sep 2026, 07:00 · Recommendations for CVE-2026-84869 - Arctic Wolf
Arctic Wolf
Press · 06 Apr 2026, 23:31 · CVE-2026-35616: Fortinet Releases Hotfix for Critical Exploited Vulnerability in FortiClient EMS - Arctic Wolf
Arctic Wolf
Press · 09 Feb 2026, 22:17 · CVE-2026-21643: Critical SQL Injection in FortiClientEMS - Arctic Wolf

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 1.1 · reality 8.6 (2026-11-02 15:14). 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 9.8; EPSS 29.5%
Attention, last 30 days
1 distinct story titles; 1 press documents; 1 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:25.177862+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
09 Feb 2026, 22:17
Added to the CISA KEV catalog
14 Sep 2026, 00:00
Published
14 Sep 2026, 16:09
Latest press mention
14 Oct 2026, 07:00
Score calculated
05 Nov 2026, 14:00