Is CVE-2026-48847 in the CISA KEV catalog?

No. CVE-2026-48847 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-48847?

CVE-2026-48847 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2026-48847?

CVE-2026-48847 has an EPSS score of 0.43% (35th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48847?

Upgrade roundcube on debian 11 to 1.4.15+dfsg.1-1+deb11u9 or later.

CVE & CISA-KEV Catalog

CVE-2026-48847

LOW

3.7

CVSS v3

NVD

Description

Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.

CWE-669

How to fix

Remediation Available

roundcubeDebian

Fixed in:1.4.15+dfsg.1-1+deb11u9CVE-2026-48847

Fixed in:1.6.5+dfsg-1+deb12u9CVE-2026-48847

Fixed in:1.6.16+dfsg-0+deb13u1CVE-2026-48847

Fixed in:1.6.16+dfsg-1CVE-2026-48847

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.43%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Other references5

Embed a live status badge for CVE-2026-48847

Markdown

[![CVE-2026-48847](https://tridentstack.com/cve/badge/CVE-2026-48847.svg)](https://tridentstack.com/cve/CVE-2026-48847)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-48847"><img src="https://tridentstack.com/cve/badge/CVE-2026-48847.svg" alt="CVE-2026-48847"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-26.