CVE-2022-39044

CVE-2022-39044 is a medium-severity vulnerability in Buffalo Wcr-300 Firmware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 3.x base score 6.8)
• EPSS exploit prediction: 0% (24th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Buffalo Wcr-300 Firmware
• Published: 2022-12-07
• Last modified: 2026-06-17

Description

Hidden functionality vulnerability in multiple Buffalo network devices allows a network-adjacent attacker with an administrative privilege to execute an arbitrary OS command. The affected products/versions are as follows: WCR-300 firmware Ver. 1.87 and earlier, WHR-HP-G300N firmware Ver. 2.00 and earlier, WHR-HP-GN firmware Ver. 1.87 and earlier, WPL-05G300 firmware Ver. 1.88 and earlier, WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, WZR-HP-AG300H firmware Ver. 1.76 and earlier, WZR-HP-G302H firmware Ver. 1.86 and earlier, WLAE-AG300N firmware Ver. 1.86 and earlier, FS-600DHP firmware Ver. 3.40 and earlier, FS-G300N firmware Ver. 3.14 and earlier, FS-HP-G300N firmware Ver. 3.33 and earlier, FS-R600DHP firmware Ver. 3.40 and earlier, BHR-4GRV firmware Ver. 2.00 and earlier, DWR-HP-G300NH firmware Ver. 1.84 and earlier, DWR-PG firmware Ver. 1.83 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WER-A54G54 firmware Ver. 1.43 and earlier, WER-AG54 firmware Ver. 1.43 and earlier, WER-AM54G54 firmware Ver. 1.43 and earlier, WER-AMG54 firmware Ver. 1.43 and earlier, WHR-300 firmware Ver. 2.00 and earlier, WHR-300HP firmware Ver. 2.00 and earlier, WHR-AM54G54 firmware Ver. 1.43 and earlier, WHR-AMG54 firmware Ver. 1.43 and earlier, WHR-AMPG firmware Ver. 1.52 and earlier, WHR-G firmware Ver. 1.49 and earlier, WHR-G300N firmware Ver. 1.65 and earlier, WHR-G301N firmware Ver. 1.87 and earlier, WHR-G54S firmware Ver. 1.43 and earlier, WHR-G54S-NI firmware Ver. 1.24 and earlier, WHR-HP-AMPG firmware Ver. 1.43 and earlier, WHR-HP-G firmware Ver. 1.49 and earlier, WHR-HP-G54 firmware Ver. 1.43 and earlier, WLI-H4-D600 firmware Ver. 1.88 and earlier, WLI-TX4-AG300N firmware Ver. 1.53 and earlier, WS024BF firmware Ver. 1.60 and earlier, WS024BF-NW firmware Ver. 1.60 and earlier, WZR2-G108 firmware Ver. 1.33 and earlier, WZR2-G300N firmware Ver. 1.55 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, WZR-AGL300NH firmware Ver. 1.55 and earlier, WZR-AMPG144NH firmware Ver. 1.49 and earlier, WZR-AMPG300NH firmware Ver. 1.51 and earlier, WZR-D1100H firmware Ver. 2.00 and earlier, WZR-G144N firmware Ver. 1.48 and earlier, WZR-G144NH firmware Ver. 1.48 and earlier, WZR-HP-G300NH firmware Ver. 1.84 and earlier, WZR-HP-G301NH firmware Ver. 1.84 and earlier, and WZR-HP-G450H firmware Ver. 1.90 and earlier.

Frequently asked questions

What is CVE-2022-39044?

Hidden functionality vulnerability in multiple Buffalo network devices allows a network-adjacent attacker with an administrative privilege to execute an arbitrary OS command. The affected products/versions are as follows: WCR-300 firmware Ver. 1.87 and earlier, WHR-HP-G300N firmware Ver. 2.00 and earlier, WHR-HP-GN firmware Ver. 1.87 and earlier, WPL-05G300 firmware Ver. 1.88 and earlier, WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, WZR-HP-AG300H firmware Ver. 1.76 and earlier, WZR-HP-G302H firmware Ver. 1.86 and earlier, WLAE-AG300N firmware Ver. 1.86 and earlier, FS-600DHP firmware Ver. 3.40 and earlier, FS-G300N firmware Ver. 3.14 and earlier, FS-HP-G300N firmware Ver. 3.33 and earlier, FS-R600DHP firmware Ver. 3.40 and earlier, BHR-4GRV firmware Ver. 2.00 and earlier, DWR-HP-G300NH firmware Ver. 1.84 and earlier, DWR-PG firmware Ver. 1.83 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WER-A54G54 firmware Ver. 1.43 and earlier, WER-AG54 firmware Ver. 1.43 and earlier, WER-AM54G54 firmware Ver. 1.43 and earlier, WER-AMG54 firmware Ver. 1.43 and earlier, WHR-300 firmware Ver. 2.00 and earlier, WHR-300HP firmware Ver. 2.00 and earlier, WHR-AM54G54 firmware Ver. 1.43 and earlier, WHR-AMG54 firmware Ver. 1.43 and earlier, WHR-AMPG firmware Ver. 1.52 and earlier, WHR-G firmware Ver. 1.49 and earlier, WHR-G300N firmware Ver. 1.65 and earlier, WHR-G301N firmware Ver. 1.87 and earlier, WHR-G54S firmware Ver. 1.43 and earlier, WHR-G54S-NI firmware Ver. 1.24 and earlier, WHR-HP-AMPG firmware Ver. 1.43 and earlier, WHR-HP-G firmware Ver. 1.49 and earlier, WHR-HP-G54 firmware Ver. 1.43 and earlier, WLI-H4-D600 firmware Ver. 1.88 and earlier, WLI-TX4-AG300N firmware Ver. 1.53 and earlier, WS024BF firmware Ver. 1.60 and earlier, WS024BF-NW firmware Ver. 1.60 and earlier, WZR2-G108 firmware Ver. 1.33 and earlier, WZR2-G300N firmware Ver. 1.55 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, WZR-AGL300NH firmware Ver. 1.55 and earlier, WZR-AMPG144NH firmware Ver. 1.49 and earlier, WZR-AMPG300NH firmware Ver. 1.51 and earlier, WZR-D1100H firmware Ver. 2.00 and earlier, WZR-G144N firmware Ver. 1.48 and earlier, WZR-G144NH firmware Ver. 1.48 and earlier, WZR-HP-G300NH firmware Ver. 1.84 and earlier, WZR-HP-G301NH firmware Ver. 1.84 and earlier, and WZR-HP-G450H firmware Ver. 1.90 and earlier.

How severe is CVE-2022-39044?

CVE-2022-39044 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-39044 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-39044?

CVE-2022-39044 primarily affects Buffalo Wcr-300 Firmware. In total, 54 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-39044?

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

When was CVE-2022-39044 published?

CVE-2022-39044 was published on 2022-12-07 and last updated on 2026-06-17.

References

• https://jvn.jp/en/vu/JVNVU92805279/index.html
• https://www.buffalo.jp/news/detail/20221003-01.html

Affected products (54)

• cpe:2.3:o:buffalo:wcr-300_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-hp-g300n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-hp-gn_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wpl-05g300_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wzr-300hp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wzr-450hp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wzr-600dhp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wzr-900dhp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wzr-hp-ag300h_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wzr-hp-g302h_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wlae-ag300n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:fs-600dhp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:fs-g300n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:fs-hp-g300n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:fs-r600dhp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:bhr-4grv_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:dwr-hp-g300nh_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:dwr-pg_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:hw-450hp-zwe_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wer-a54g54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wer-ag54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wer-am54g54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wer-amg54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-300_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-300hp_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-am54g54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-amg54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-ampg_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-g_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-g300n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-g301n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-g54s_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-g54s-ni_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-hp-ampg_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-hp-g_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:whr-hp-g54_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wli-h4-d600_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:wli-tx4-ag300n_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:ws024bf_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:buffalo:ws024bf-nw_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Buffalo Wcr-300 Firmware

• CVE-2022-40966 — High (CVSS 8.8): Authentication bypass vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to bypass…
• CVE-2016-4816 — Medium (CVSS 6.5): BUFFALO WZR-600DHP3 devices with firmware 2.16 and earlier and WZR-S600DHP devices allow remote attackers to discover…

All CVEs affecting Buffalo Wcr-300 Firmware →