HOMEVULNERABILITIESCVE-2019-17192
CRITICAL

CVE-2019-17192

CWE-670Published: October 5, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

The WebRTC component in the Signal Private Messenger application through 4.47.7 for Android processes videoconferencing RTP packets before a callee chooses to answer a call, which might make it easier for remote attackers to cause a denial of service or possibly have unspecified other impact via malformed packets. NOTE: the vendor plans to continue this behavior for performance reasons unless a WebRTC design change occurs

NVD Source

Technical Analysis

CVE-2019-17192 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.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

signal1 product(s)
private messenger
Source: NVD CPE · 1 total CPE entries

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
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Official Patches & Advisories

ADVISORYhttps://bugs.chromium.org/p/project-zero/issues/detail?id=1936
ADVISORYhttps://news.ycombinator.com/item?id=21161432
ADVISORYhttps://twitter.com/moxie/status/1180226374851710976
ADVISORYhttps://bugs.chromium.org/p/project-zero/issues/detail?id=1936
ADVISORYhttps://news.ycombinator.com/item?id=21161432
ADVISORYhttps://twitter.com/moxie/status/1180226374851710976

All References (6)

→
https://bugs.chromium.org/p/project-zero/issues/detail?id=1936Third Party Advisory
→
https://news.ycombinator.com/item?id=21161432Third Party Advisory
→
https://twitter.com/moxie/status/1180226374851710976Third Party Advisory
→
https://bugs.chromium.org/p/project-zero/issues/detail?id=1936Third Party Advisory
→
https://news.ycombinator.com/item?id=21161432Third Party Advisory
→
https://twitter.com/moxie/status/1180226374851710976Third Party Advisory

Quick Facts

CVE IDCVE-2019-17192
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-670
CISA KEVNo
Affected1 vendor(s)
PublishedOct 5, 2019

Related CVEs (CWE-670)

CVE-2025-43359
9.8
CVE-2022-21679
9.8
CVE-2020-1914
9.8
CVE-2020-17466
9.8
CVE-2021-41153
9.8
CVE-2022-25745
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-17192 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.
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