How severe is CVE-2019-5254?

CVE-2019-5254 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-5254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5254?

CVE-2019-5254 primarily affects Huawei Ap2000 Firmware. In total, 244 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-5254?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-5254 published?

CVE-2019-5254 was published on 2019-12-13 and last updated on 2026-06-17.

CVE-2019-5254

CVE-2019-5254 is a high-severity vulnerability in Huawei Ap2000 Firmware with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 5.0
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Huawei Ap2000 Firmware
Published: 2019-12-13
Last modified: 2026-06-17

Description

Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;Secospace AntiDDoS8000;Secospace USG6300;Secospace USG6500;Secospace USG6600;USG6000V;eSpace U1981) have an out-of-bounds read vulnerability. An attacker who logs in to the board may send crafted messages from the internal network port or tamper with inter-process message packets to exploit this vulnerability. Due to insufficient validation of the message, successful exploit may cause the affected board to be abnormal.

Frequently asked questions

What is CVE-2019-5254?: Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;Secospace AntiDDoS8000;Secospace USG6300;Secospace USG6500;Secospace USG6600;USG6000V;eSpace U1981) have an out-of-bounds read vulnerability. An attacker who logs in to the board may send crafted messages from the internal network port or tamper with inter-process message packets to exploit this vulnerability. Due to insufficient validation of the message, successful exploit may cause the affected board to be abnormal.
How severe is CVE-2019-5254?: CVE-2019-5254 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-5254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5254?: CVE-2019-5254 primarily affects Huawei Ap2000 Firmware. In total, 244 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-5254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-5254 published?: CVE-2019-5254 was published on 2019-12-13 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191211-01-ssp-en

Affected products (244)

cpe:2.3:o:huawei:ap2000_firmware:v200r005c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r006c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r007c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r007c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r008c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ap2000_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c00sph303:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c00sph508:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc100pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc200b062:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc200pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc300b078:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c20spc300pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c30spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c30spc100pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c30spc200pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c30spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c50:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c50pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r001c80:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_firmware:v500r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c00spc500pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c00sph303:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c00sph508:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c20spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c20spc100pwe:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c20spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_firmware:v500r001c20spc200b062:*:*:*:*:*:*:*

More vulnerabilities in Huawei Ap2000 Firmware

CVE-2019-5258 — Medium (CVSS 5.5): Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;…
CVE-2019-5257 — Medium (CVSS 5.5): Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;…
CVE-2019-5256 — Medium (CVSS 5.5): Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;…
CVE-2019-5255 — Medium (CVSS 5.5): Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;…

All CVEs affecting Huawei Ap2000 Firmware →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →