CVE-2017-7814
File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files.
02 Description
File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.19% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 67.5% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-06-11 21:00Z8 YR AGO
- Last updated
- 2024-08-05 16:12Z2 YR AGO
- Reserved
- 2017-04-12
- Assigning CNA
- mozilla
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- f4454602d1584010b557c2a93ceef599f098d4fa0adc601b8ab4a915793b8473
05 Affected products
06 References
- www.securityfocus.com101059http://www.securityfocus.com/bid/101059
- lists.debian.org[debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security updatehttps://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-22/
- www.securitytracker.com1039465http://www.securitytracker.com/id/1039465
- access.redhat.comRHSA-2017:2831https://access.redhat.com/errata/RHSA-2017:2831
- access.redhat.comRHSA-2017:2885https://access.redhat.com/errata/RHSA-2017:2885
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-21/
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1376036
- www.debian.orgDSA-4014https://www.debian.org/security/2017/dsa-4014
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-23/
- www.debian.orgDSA-3987https://www.debian.org/security/2017/dsa-3987
- security.gentoo.orgGLSA-201803-14https://security.gentoo.org/glsa/201803-14
07 Fixed in
Arch Linux
- thunderbird Fixed in 52.4.0-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- firefox-esr Fixed in 52.4.0esr-2
- thunderbird Fixed in 1:52.4.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- firefox-esr Fixed in 52.4.0esr-2
- thunderbird Fixed in 1:52.4.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- firefox-esr Fixed in 52.4.0esr-2
- thunderbird Fixed in 1:52.4.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- firefox Fixed in 56.0+build6-0ubuntu0.14.04.1
- thunderbird Fixed in 1:52.4.0+build1-0ubuntu0.14.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- firefox Fixed in 56.0+build6-0ubuntu0.16.04.1
- thunderbird Fixed in 1:52.4.0+build1-0ubuntu0.16.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- firefox Fixed in 56.0+build6-0ubuntu1
- thunderbird Fixed in 1:52.4.0+build1-0ubuntu2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.