CVE-2020-24918Public exploitNetwork attack vector

Unauthenticated code execution via oversized digest username

Published Apr 30, 2021 · Updated Sep 6, 2024

Buffer overflow in Ambarella Oryx RTSP Server 2020-01-07 allows remote attackers to execute code or crash the service via RTSP. parse_authentication_header() mishandles Digest usernames longer than 132 characters, overwriting control data in the RTSP process. Unauthenticated network access to RTSP is sufficient; on Furbo 2, successful exploitation runs code as root and permits full device takeover.

CVSS severity9.8
Critical
EPSS probability4.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Ambarella Oryx RTSP Server 2020-01-07 allows remote attackers to execute code or crash the service via RTSP. parse_authentication_header() mishandles Digest usernames longer than 132 characters, overwriting control data in the RTSP process. Unauthenticated network access to RTSP is sufficient; on Furbo 2, successful exploitation runs code as root and permits full device takeover.

The record

CVE
CVE-2020-24918
Published
Apr 30, 2021
Updated
Sep 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, CAPEC-100, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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 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 exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC-100Overflow Buffers
T1190Exploit Public-Facing Application

Public exploit references

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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