How severe is CVE-2019-5255?

CVE-2019-5255 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-5255 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5255?

CVE-2019-5255 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-2019-5255?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-5255 published?

CVE-2019-5255 was published on 2019-12-13 and last updated on 2026-06-17.

CVE-2019-5255

CVE-2019-5255 is a medium-severity vulnerability in Huawei Ap2000 Firmware with a CVSS 3.x base score of 5.5. 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: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (10th 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 a DoS vulnerability. An attacker may send crafted messages from a FTP client to exploit this vulnerability. Due to insufficient validation of the message, successful exploit may cause the system out-of-bounds read and result in a denial of service condition of the affected service.

Frequently asked questions

What is CVE-2019-5255?: 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 a DoS vulnerability. An attacker may send crafted messages from a FTP client to exploit this vulnerability. Due to insufficient validation of the message, successful exploit may cause the system out-of-bounds read and result in a denial of service condition of the affected service.
How severe is CVE-2019-5255?: CVE-2019-5255 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-5255 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5255?: CVE-2019-5255 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-2019-5255?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-5255 published?: CVE-2019-5255 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-2019-5254 — High (CVSS 8.6): Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;…
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;…

All CVEs affecting Huawei Ap2000 Firmware →

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

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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…

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