Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-9846

28
FAUCET Score

CVE-2018-9846 is a high-severity vulnerability affecting Roundcube versions 1.2.0 to 1.3.5, specifically when the archive plugin is enabled. It allows for an IMAP injection attack through an unsanitized user-controlled parameter in archive.php requests, potentially leading to full compromise of confidentiality, integrity, and availability. While less easily exploitable in versions 1.3.4 and later due to Same Origin Policy, the attack vector is network-based with low attack complexity requiring user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.2.0, <= 1.3.5CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.29%
Probability of exploitation in next 30 days
EPSS Percentile
81.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0229 is in the 80th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
ubuntupatch availablevia ubuntu_usn
Product: roundcube (bionic)Fixed in: 1.3.6+dfsg.1-1ubuntu0.1~esm7
ubuntupatch availablevia ubuntu_usn
Product: roundcube (xenial)Fixed in: 1.2~beta+dfsg.1-0ubuntu1+esm7

Vendor Advisories (1)

ubuntuUSN-8132-1

Roundcube Webmail vulnerabilities

Mar 30, 2026

References

github.com / roundcube/roundcubemail/issues/6229
PatchThird Party Advisory
github.com / roundcube/roundcubemail/issues/6238
PatchThird Party Advisory
medium.com / %40ndrbasi/cve-2018-9846-roundcube-303097048b0a
debian.org / security/2018/dsa-4181
Third Party Advisory