CVE-2022-27928Network attack vector

Remote software abort via SIP

Published Jul 17, 2022 · Updated Aug 3, 2024

Denial of service in Pexip Infinity 27.x before 27.3 allows remote attackers to trigger a software abort via the Session Initiation Protocol. The affected SIP handling path accepts a crafted signaling request that causes the conferencing software to abort instead of safely rejecting malformed input. Exploitation requires network reachability to the SIP service and interrupts service availability without evidence of data disclosure or modification.

CVSS severityUnavailable
Unscored
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Pexip Infinity 27.x before 27.3 allows remote attackers to trigger a software abort via the Session Initiation Protocol. The affected SIP handling path accepts a crafted signaling request that causes the conferencing software to abort instead of safely rejecting malformed input. Exploitation requires network reachability to the SIP service and interrupts service availability without evidence of data disclosure or modification.

The record

CVE
CVE-2022-27928
Published
Jul 17, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2022CVE 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

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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

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Your stack

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