CASCACascade Atlas

Evidence dossier

CVE-2017-16651

CVE-2017-16651

63.7–86.7Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Roundcube Webmail before 1.1.10, 1.2.x before 1.2.7, and 1.3.x before 1.3.3 allows unauthorized access to arbitrary files on the host's filesystem, including configuration files, as exploited in the wild in November 2017. The attacker must be able to authenticate at the target system with a valid username/password as the attack requires an active session. The issue is related to file-based attachment plugins and _task=settings&_action=upload-display&_from=timezone requests.

State
PUBLISHED
Published
Nov 9, 2017
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS36.92%

2026-07-18 · v2026.06.15 · percentile 98.3%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

mitreoriginal assertion
container

Roundcube Webmail before 1.1.10, 1.2.x before 1.2.7, and 1.3.x before 1.3.3 allows unauthorized access to arbitrary files on the host's filesystem, including configuration files, as exploited in the wild in November 2017. The attacker must be able to authenticate at the target system with a valid username/password as the attack requires an active session. The issue is related to file-based attachment plugins and _task=settings&_action=upload-display&_from=timezone requests.

CISA KEVoriginal assertion
observed_exploitation

Roundcube Webmail File Disclosure Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.369190000000; percentile 0.983390000000

Applicability

Cited product scope

Trace impact →
n/an/a
[{"status": "affected", "version": "n/a"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*; end including 1.1.9supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.5:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.2.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.3.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.3.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:roundcube:webmail:1.3.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

7.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6
nvd@nist.govCVSS 2.0 · role PrimaryAV:L/AC:L/Au:N/C:P/I:P/A:P
7.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.