CVE-2022-29797Network attack vector

Privilege escalation via crafted-message buffer overflow

Published Jun 13, 2022 · Updated Aug 3, 2024

Buffer overflow in Huawei PixLab X1 firmware 01.70.49.29.46 allows remote attackers to escalate privileges via a crafted message. Huawei has not disclosed the affected message handler, buffer, or unchecked copy operation that processes the crafted message. The target must accept the crafted message over a network-reachable interface; successful exploitation elevates privileges on the printer, but no further capability is publicly specified.

CVSS severity9.8
Critical
EPSS probability0.87%
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 Huawei PixLab X1 firmware 01.70.49.29.46 allows remote attackers to escalate privileges via a crafted message. Huawei has not disclosed the affected message handler, buffer, or unchecked copy operation that processes the crafted message. The target must accept the crafted message over a network-reachable interface; successful exploitation elevates privileges on the printer, but no further capability is publicly specified.

The record

CVE
CVE-2022-29797
Published
Jun 13, 2022
Updated
Aug 3, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
HUAWEI PixLab X1
Classifications
CWE-120, CAPEC-100, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 13, 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?

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

  1. Affected versionversion=01.70.49.29.46

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · HUAWEI PixLab X1version=01.70.49.29.46

Published CVSS scores

9.1HuaweiCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
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
9.8HuaweiCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC-100Overflow Buffers
T1210Exploitation of Remote Services

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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