MEDIUM
CVE-2019-11717
CWE-116Published: July 23, 2019· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
A vulnerability exists where the caret ("^") character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Technical Analysis
CVE-2019-11717 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (26)
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.htmlThird Party Advisory
→
https://bugzilla.mozilla.org/show_bug.cgi?id=1548306Exploit · Issue Tracking · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2019/08/msg00001.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/08/msg00002.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201908-12Third Party Advisory
→
https://security.gentoo.org/glsa/201908-20Third Party Advisory
→
https://www.mozilla.org/security/advisories/mfsa2019-21/Vendor Advisory
→
https://www.mozilla.org/security/advisories/mfsa2019-22/Vendor Advisory
→
https://www.mozilla.org/security/advisories/mfsa2019-23/Vendor Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.htmlThird Party Advisory
Quick Facts
CVE IDCVE-2019-11717
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-116
CISA KEVNo
Affected4 vendor(s)
PublishedJul 23, 2019
Related CVEs (CWE-116)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-11717 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.