Page generated: 11 Nov 2026, 09:34 UTC
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CVE-2026-87886

Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Backup plugin for cPanel & WHM (Linux) before build 1.9.3.1021, Acronis Backup extension for Plesk (Linux) before build 1.8.11.638, Acronis Backup plugin for DirectAdmin (Lin…

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Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Backup plugin for cPanel & WHM (Linux) before build 1.9.3.1021, Acronis Backup extension for Plesk (Linux) before build 1.8.11.638, Acronis Backup plugin for DirectAdmin (Linux) before build 1.2.3.238.
CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.2/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.8: +1.17
  • Fresh EPSS: 0.23%: +0.00

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

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

Help Net Security
Press · 20 Sep 2026, 07:00 · Week in review: Cisco patches exploited email gateway 0-day, Revolut breach - Help Net Security
Security Affairs
Press · 17 Sep 2026, 07:00 · U.S. CISA adds Acronis Backup, Cisco ISE, and Google Pixel flaws to its Known Exploited Vulnerabilities c... - Security Affairs
Rescana
Press · 17 Sep 2026, 07:00 · Active Exploitation Alert: CVE-2026-87886 Privilege Escalation in Acronis Backup Plugin for cPanel & WHM and Plesk on Linux - Rescana
SOC Prime
Press · 17 Sep 2026, 07:00 · CVE-2026-87886: Acronis Backup Plugin Privilege Escalation Flaw Exploited in Targeted Attacks - SOC Prime
The Hacker News
Press · 16 Sep 2026, 07:00 · Acronis cPanel Backup Plugin Vulnerability Exploited in Targeted Attacks - The Hacker News
See all 10 source documents
SecurityWeek
Press · 16 Sep 2026, 07:00 · Acronis Patches Exploited Vulnerability in cPanel Backup Plugin - SecurityWeek
Cyber Press
Press · 16 Sep 2026, 07:00 · Acronis Backup Plugin Vulnerability in cPanel and Plesk Exploited in the Wild - Cyber Press
Help Net Security
Press · 16 Sep 2026, 07:00 · Acronis backup plugin flaw exploited in targeted attacks (CVE-2026-87886) - Help Net Security
CyberSecurityNews
Press · 16 Sep 2026, 07:00 · Acronis Plugin Vulnerability in cPanel and Plesk Exploited in the Wild - CyberSecurityNews
BleepingComputer
Press · 15 Sep 2026, 07:00 · Acronis warns of actively exploited flaw in its cPanel backup plugin - BleepingComputer

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 8.2 (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 7.8; EPSS 0.2%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, low 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 14:00:29.412792+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
15 Sep 2026, 07:00
Added to the CISA KEV catalog
16 Sep 2026, 00:00
Published
17 Sep 2026, 22:57
Latest press mention
20 Sep 2026, 07:00
Score calculated
05 Nov 2026, 14:00