CVE-2021-0597

Local SIP account disclosure via unprotected broadcasts

Published Jul 14, 2021 · Updated Aug 3, 2024

Missing authorization in Android 8.1 through 11 allows local users to retrieve SIP account names without user interaction. SipService's notifyProfileAdded and notifyProfileRemoved methods sent broadcasts containing EXTRA_LOCAL_URI without requiring USE_SIP permission. A local malicious application can receive those broadcasts without extra execution privileges, exposing configured SIP account identifiers but not message content or credentials.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in Android 8.1 through 11 allows local users to retrieve SIP account names without user interaction. SipService's notifyProfileAdded and notifyProfileRemoved methods sent broadcasts containing EXTRA_LOCAL_URI without requiring USE_SIP permission. A local malicious application can receive those broadcasts without extra execution privileges, exposing configured SIP account identifiers but not message content or credentials.

The record

CVE
CVE-2021-0597
Published
Jul 14, 2021
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-862
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android-8.1 Android-9 Android-10 Android-11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Google Cloud · Androidversion=Android-8.1 Android-9 Android-10 Android-11

Published CVSS scores

4.9NIST NVDAV:L/AC:L/Au:N/C:C/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo