How severe is CVE-2022-26991?

CVE-2022-26991 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-26991 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-26991?

CVE-2022-26991 primarily affects Arris Sbr-ac1900p Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26991?

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

When was CVE-2022-26991 published?

CVE-2022-26991 was published on 2022-03-15 and last updated on 2026-06-17.

CVE-2022-26991

CVE-2022-26991 is a critical-severity vulnerability in Arris Sbr-ac1900p Firmware with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Arris Sbr-ac1900p Firmware
Published: 2022-03-15
Last modified: 2026-06-17

Description

Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a command injection vulnerability in the ntp function via the TimeZone parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Frequently asked questions

What is CVE-2022-26991?: Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a command injection vulnerability in the ntp function via the TimeZone parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
How severe is CVE-2022-26991?: CVE-2022-26991 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-26991 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-26991?: CVE-2022-26991 primarily affects Arris Sbr-ac1900p Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26991?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-26991 published?: CVE-2022-26991 was published on 2022-03-15 and last updated on 2026-06-17.

References

https://github.com/wudipjq/my_vuln/blob/main/ARRIS/vuln_6/6.md

Affected products (3)

cpe:2.3:o:arris:sbr-ac1900p_firmware:1.0.7-b05:*:*:*:*:*:*:*
cpe:2.3:o:arris:sbr-ac3200p_firmware:1.0.7-b05:*:*:*:*:*:*:*
cpe:2.3:o:arris:sbr-ac1200p_firmware:1.0.5-b05:*:*:*:*:*:*:*

More vulnerabilities in Arris Sbr-ac1900p Firmware

CVE-2022-26994 — Critical (CVSS 9.8): Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a…
CVE-2022-26993 — Critical (CVSS 9.8): Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a…
CVE-2022-26992 — Critical (CVSS 9.8): Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a…
CVE-2022-26990 — Critical (CVSS 9.8): Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05 and SBR-AC1200P 1.0.5-B05 were discovered to contain a…

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