CVE-2022-27255

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Published Aug 1, 2022 CVSS 3.1 · 9.8 Critical EPSS 36.7% KEV · Not listed

Description

In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:realtek:ecos_rsdk_firmware:1.5.7p1:*:*:*:*:*:*:*

cpe:2.3:h:realtek:ecos_rsdk:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:realtek:ecos_msdk_firmware:4.9.4p1:*:*:*:*:*:*:*

cpe:2.3:h:realtek:ecos_msdk:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 36.7% (36.704% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://forum.defcon.org/node/241835
https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf

History

No history.

Subscriptions

Realtek Ecos Msdk Ecos Msdk Firmware Ecos Rsdk Ecos Rsdk Firmware

Weaknesses

CWE-20

Sources

CVE record Updated: Aug 3, 2024, 5:25 AM

Status: PUBLISHED
Assigner: mitre
Published: Aug 1, 2022, 11:43 AM
Updated: Aug 3, 2024, 5:25 AM
Reserved: Mar 20, 2022, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:36 AM

Status: Modified
Published: Aug 1, 2022, 12:15 PM
Modified: Jun 17, 2026, 4:36 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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