Known exploited vulnerability
CVE-2025-48928
The short answer
CVE-2025-48928 affects TeleMessage service and is rated medium (CVSS 4.0). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-07-01: attackers are using it, so patch it first.
What it is
Severity
4.0 medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploited (CISA KEV)
Yes, since Jul 1, 2025
Federal due date Jul 22, 2025
EPSS, next 30 days
0.58%
Higher than 48% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- None
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
service. NVD's record lists the exact affected versions.
References
- www.wired.com/story/how-the-signal-knock-off-app-telemessage-got-hacked-in-20-minutes/ Press/Media Coverage
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48928 US Government Resource
Questions
Is CVE-2025-48928 being exploited?
Yes. CISA added CVE-2025-48928 to its Known Exploited Vulnerabilities catalog on 2025-07-01, with a federal remediation due date of 2025-07-22.
How do I fix CVE-2025-48928?
CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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