CVE-2020-1866
CVE-2020-1866 is a medium-severity vulnerability in Huawei Nip6800 Firmware with a CVSS 3.x base score of 6.5. 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 6.5)
- CVSS v2: 3.3
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Huawei Nip6800 Firmware
- Published:
- Last modified:
Description
There is an out-of-bounds read vulnerability in several products. The software reads data past the end of the intended buffer when parsing certain crafted DHCP messages. Successful exploit could cause certain service abnormal. Affected product versions include:NIP6800 versions V500R001C30,V500R001C60SPC500,V500R005C00;S12700 versions V200R008C00;S2700 versions V200R008C00;S5700 versions V200R008C00;S6700 versions V200R008C00;S7700 versions V200R008C00;S9700 versions V200R008C00;Secospace USG6600 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500,V500R005C00;USG9500 versions V500R001C30SPC300,V500R001C30SPC600,V500R001C60SPC500,V500R005C00.
Frequently asked questions
- What is CVE-2020-1866?
- There is an out-of-bounds read vulnerability in several products. The software reads data past the end of the intended buffer when parsing certain crafted DHCP messages. Successful exploit could cause certain service abnormal. Affected product versions include:NIP6800 versions V500R001C30,V500R001C60SPC500,V500R005C00;S12700 versions V200R008C00;S2700 versions V200R008C00;S5700 versions V200R008C00;S6700 versions V200R008C00;S7700 versions V200R008C00;S9700 versions V200R008C00;Secospace USG6600 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500,V500R005C00;USG9500 versions V500R001C30SPC300,V500R001C30SPC600,V500R001C60SPC500,V500R005C00.
- How severe is CVE-2020-1866?
- CVE-2020-1866 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-1866 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-1866?
- CVE-2020-1866 primarily affects Huawei Nip6800 Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-1866?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-1866 published?
- CVE-2020-1866 was published on 2021-01-13 and last updated on 2026-06-17.
References
Affected products (17)
- cpe:2.3:o:huawei:nip6800_firmware:v500r001c30:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:nip6800_firmware:v500r001c60spc500:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:nip6800_firmware:v500r005c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:s12700_firmware:v200r008c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:s2700_firmware:v200r008c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:s6700_firmware:v200r008c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:s7700_firmware:v200r008c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:s9700_firmware:v200r008c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc200:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc600:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60spc500:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r005c00:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc300:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc600:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg9500_firmware:v500r001c60spc500:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg9500_firmware:v500r005c00:*:*:*:*:*:*:*
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