CVE-2016-4591: webkit2gtk Improper Access Control
CVSS: 7.8v2.0HighModified
AliasesUBUNTU-CVE-2016-4591DEBIAN-CVE-2016-4591
Published 22-07-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-4591 is a high (CVSS 7.8) Improper Access Control vulnerability in webkit2gtk. EPSS estimates a 4.26% chance of exploitation in the next 30 days, higher than 90.9% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
4.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 22-07-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 mishandles the location variable, which allows remote attackers to access the local filesystem via unspecified vectors.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:C/I:N/A:NSourcesSingle source
EPSS trend
Probability
4.26%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.26% on 20-09-2026
20-09-202620-10-2026
EPSS score4.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtk< 2.12.5-0ubuntu0.16.04.1
- webkitgtkAll versions (No fix recorded)
Debian1 product
- webkit2gtk< 2.12.4-1
2 vendors · 5 products
References
15 links- lists.apple.com/archives/security-announce/2016/Jul/msg00003.htmlVendor AdvisoryX Refsource APPLEMailing ListREPORT
- lists.apple.com/archives/security-announce/2016/Jul/msg00001.htmlVendor AdvisoryX Refsource APPLEMailing ListREPORT
- packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.htmlX Refsource MISCThird Party AdvisoryVDB Entry
- www.securityfocus.com/archive/1/539295/100/0/threadedMailing ListX Refsource BUGTRAQThird Party AdvisoryVDB Entry
- lists.apple.com/archives/security-announce/2016/Jul/msg00004.htmlVendor AdvisoryX Refsource APPLEMailing ListREPORT
