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CVE-2022-28345

25
FAUCET Score

CVE-2022-28345 is a URI spoofing vulnerability in Signal for iOS versions prior to 5.34, allowing attackers to craft malicious links that appear legitimate. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and can lead to significant integrity impact, as unauthenticated attackers can trick users into clicking spoofed URLs. While no public exploit code or active exploitation has been observed, there is community discussion highlighting the potential for RTLO injection via specific subdomain structures.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.34CPE matchmatch criteria
cpe:2.3:a:signal:signal:*:*:*:*:*:iphone_os:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.19%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0219 is in the 66th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

blog.malwarebytes.com / social-engineering/2022/03/uri-spoofing-flaw-could-phish-whatsapp-signal-instagram-and-imessage-users
Third Party Advisory
github.com / sickcodes/security/blob/master/advisories/SICK-2022-42.md
ExploitPatchThird Party Advisory
github.com / zadewg/RIUS
Third Party Advisory
sick.codes / sick-2022-42
ExploitPatchThird Party Advisory