In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the LDAP search filter was subject to injection via unescaped %u/%fu/%d substitution, which may lead to information disclosure or privilege escalation.
CVE-2026-75007
Score 5.4 from GitHub Security Advisory published 2026-08-17. a secondary CVSS source baseline 5.4; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(high)
- EG Risk
- 24(Track)EG Risk 24/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity54% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 16%
- KEV
- Not listed
Published
August 17, 2026
Last Modified
August 18, 2026
Advisory Details (3)
Auto-updated Aug 17, 2026Security updates 1.6.18 and 1.7.3 released
https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3commit e6cc1e121eff (roundcube/roundcubemail)
Fix landed in roundcube/roundcubemail commit e6cc1e121eff — awaiting tagged release
https://github.com/roundcube/roundcubemail/commit/e6cc1e121effeaec6d916feb4e019d2828924540commit 0893e192adf8 (roundcube/roundcubemail)
Fix landed in roundcube/roundcubemail commit 0893e192adf8 — awaiting tagged release
https://github.com/roundcube/roundcubemail/commit/0893e192adf803c7a5a89fafc80278257e1bcf65Vendor Advisories for CVE-2026-75007(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 19× in last 7d / 19× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-21 00:30 UTCEG score recompute
- 2026-08-21 00:30 UTCGHSA enrichment
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 01:48 UTCEG score recompute
- 2026-08-20 01:48 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 03:06 UTCEG score recompute
- 2026-08-19 03:06 UTCGHSA enrichment
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 04:21 UTCEG score recompute
- 2026-08-18 04:21 UTCGHSA enrichment
- 2026-08-18 04:07 UTCEG score recompute
- 2026-08-18 04:06 UTCGHSA enrichment
- 2026-08-17 14:22 UTCEG score recompute
- 2026-08-17 14:17 UTCEG score recompute
- 2026-08-17 13:30 UTCEG score recompute
- 2026-08-17 13:16 UTCEG score recompute
- 2026-08-17 13:16 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-75007?
When was CVE-2026-75007 disclosed?
Is CVE-2026-75007 actively exploited?
What is the CVSS score of CVE-2026-75007?
How do I remediate CVE-2026-75007?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-75007
Is Your Infrastructure Affected by CVE-2026-75007?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.