A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05
Published Nov 4, 2021
9.8
CRITICALCVSS 3.1
EPSS 8.65%
Description
A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.
Affected products
No data.
- 1.0.2b05
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (33 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 8.65% (0.08649) | 94.97th | v5 (v2026.06.15) |
| Jul 24, 2026 | 8.65% (0.08651) | 94.54th | v5 (v2026.06.15) |
| Jul 9, 2026 | 10.29% (0.10295) | 95.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.56% (0.12562) | 95.71th | v5 (v2026.06.15) |
| Jun 12, 2026 | 26.11% (0.26107) | 96.42th | v4 (v2025.03.14) |
| Nov 21, 2025 | 23.95% (0.23952) | 95.80th | v4 (v2025.03.14) |
| Nov 18, 2025 | 26.14% (0.26135) | 95.97th | v4 (v2025.03.14) |
| Nov 15, 2025 | 23.95% (0.23952) | 95.79th | v4 (v2025.03.14) |
| Mar 30, 2025 | 30.14% (0.30143) | 96.27th | v4 (v2025.03.14) |
| Mar 29, 2025 | 39.94% (0.39938) | 95.97th | v4 (v2025.03.14) |
| Mar 17, 2025 | 30.14% (0.30143) | 96.28th | v4 (v2025.03.14) |
| Mar 9, 2025 | 9.26% (0.09260) | 94.84th | v3 (v2023.03.01) |
| Feb 20, 2025 | 7.42% (0.07425) | 94.15th | v3 (v2023.03.01) |
| Dec 17, 2024 | 9.58% (0.09577) | 94.77th | v3 (v2023.03.01) |
| Nov 7, 2024 | 4.74% (0.04740) | 92.89th | v3 (v2023.03.01) |
| Sep 26, 2024 | 3.40% (0.03401) | 91.59th | v3 (v2023.03.01) |
| Jul 20, 2024 | 1.96% (0.01960) | 88.88th | v3 (v2023.03.01) |
| Jun 10, 2024 | 1.02% (0.01016) | 83.75th | v3 (v2023.03.01) |
| Feb 8, 2024 | 1.19% (0.01188) | 84.65th | v3 (v2023.03.01) |
| Jan 27, 2024 | 0.97% (0.00971) | 81.72th | v3 (v2023.03.01) |
| Sep 21, 2023 | 0.84% (0.00837) | 80.03th | v3 (v2023.03.01) |
| Jul 10, 2023 | 0.59% (0.00591) | 75.37th | v3 (v2023.03.01) |
| Jun 26, 2023 | 0.45% (0.00452) | 71.67th | v3 (v2023.03.01) |
| Jun 12, 2023 | 0.36% (0.00364) | 68.37th | v3 (v2023.03.01) |
| May 28, 2023 | 0.29% (0.00289) | 64.35th | v3 (v2023.03.01) |
| Apr 17, 2023 | 0.22% (0.00222) | 58.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00200) | 56.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.21% (0.02211) | 81.20th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.21% (0.02211) | 79.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 14.90% (0.14903) | 91.30th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.85% (0.03849) | 72.82th | v1 |
| Jan 6, 2022 | 3.85% (0.03849) | 72.58th | v1 |
| Nov 5, 2021 | 0.88% (0.00884) | 59.90th | v1 |
References (2)
- https://github.com/sek1th/iot/blob/master/dir823g_3.md ExploitThird Party Advisory
- https://www.dlink.com/en/security-bulletin/ Not ApplicableVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/sek1th/iot/blob/master/dir823g_3.md | ExploitThird Party Advisory | |
| https://www.dlink.com/en/security-bulletin/ | Not ApplicableVendor Advisory |
Change history (0)
No recorded changes yet.