A post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an authenticated attacker to execute operating system (OS) commands on an affected device.
Conclusion & alert: CVE-2025-8693 is rated Moderate Risk (55.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.96%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.15% | 0.96% | +0.81% |
| 2 | 2026-06-14 | 0.12% | 0.15% | +0.03% |
| 3 | 2026-04-16 | — | 0.12% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| zyxel | dm4200-b0_firmware | <= 5.17\(acbs.1.3\)c0 | cpe:2.3:o:zyxel:dm4200-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | dx3300-t0_firmware | <= 5.50\(abvy.6.3\)c0 | cpe:2.3:o:zyxel:dx3300-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | dx3300-t1_firmware | <= 5.50\(abvy.6.3\)c0 | cpe:2.3:o:zyxel:dx3300-t1_firmware:*:*:*:*:*:*:*:* |
| zyxel | dx3301-t0_firmware | <= 5.50\(abvy.6.3\)c0 | cpe:2.3:o:zyxel:dx3301-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | dx4510-b1_firmware | <= 5.17\(abyl.9\)c0 | cpe:2.3:o:zyxel:dx4510-b1_firmware:*:*:*:*:*:*:*:* |
| zyxel | dx5401-b0_firmware | <= 5.17\(abyo.7\)b2 | cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | dx5401-b1_firmware | <= 5.17\(abyo.7\)b2 | cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:* |
| zyxel | ee3301-00_firmware | <= 5.63\(acmu.1.1\)c0 | cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:* |
| zyxel | ee5301-00_firmware | <= 5.63\(acld.1.1\)c0 | cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:* |
| zyxel | ee6510-10_firmware | <= 5.19\(acjq.3\)c0 | cpe:2.3:o:zyxel:ee6510-10_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3300-t0_firmware | <= 5.50\(abvy.6.3\)c0 | cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3300-t0_firmware | <= 5.50\(acdi.2.1\)c0 | cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3300-t1_firmware | <= 5.50\(abvy.6.3\)c0 | cpe:2.3:o:zyxel:ex3300-t1_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3301-t0_firmware | <= 5.50\(abvy.6.3\)c0 | cpe:2.3:o:zyxel:ex3301-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3500-t0_firmware | <= 5.44\(achr.4\)c0 | cpe:2.3:o:zyxel:ex3500-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3501-t0_firmware | <= 5.44\(achr.4\)c0 | cpe:2.3:o:zyxel:ex3501-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3510-b0_firmware | <= 5.17\(abup.15\)c0 | cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3510-b1_firmware | <= 5.17\(abup.15\)c0 | cpe:2.3:o:zyxel:ex3510-b1_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex3600-t0_firmware | <= 5.70\(acif.1.2\)c0 | cpe:2.3:o:zyxel:ex3600-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5401-b0_firmware | <= 5.17\(abyo.7\)b2 | cpe:2.3:o:zyxel:ex5401-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5401-b1_firmware | <= 5.17\(abyo.7\)b2 | cpe:2.3:o:zyxel:ex5401-b1_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5501-b0_firmware | <= 5.17\(abry.5.5\)c0 | cpe:2.3:o:zyxel:ex5501-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5510-b0_firmware | <= 5.17\(abqx.10\)c0 | cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5512-t0_firmware | <= 5.70\(aceg.5\)c0 | cpe:2.3:o:zyxel:ex5512-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5601-t0_firmware | <= 5.70\(acdz.4.1\)c0 | cpe:2.3:o:zyxel:ex5601-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex5601-t1_firmware | <= 5.70\(acdz.4.1\)c0 | cpe:2.3:o:zyxel:ex5601-t1_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex7501-b0_firmware | <= 5.18\(achn.2.1\)c0 | cpe:2.3:o:zyxel:ex7501-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ex7710-b0_firmware | <= 5.18\(acak.1.4\)c0 | cpe:2.3:o:zyxel:ex7710-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | emg3525-t50b_firmware | <= 5.50\(abpm.9.5\)c0 | cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:* |
| zyxel | emg5523-t50b_firmware | <= 5.50\(abpm.9.5\)c0 | cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:* |
| zyxel | emg5723-t50k_firmware | <= 5.50\(abom.8.6\)c0 | cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:* |
| zyxel | gm4100-b0_firmware | <= 5.18\(accl.1\)c0 | cpe:2.3:o:zyxel:gm4100-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg3625-t50b_firmware | <= 5.50\(abpm.9.5\)c0 | cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg3927-t50k_firmware | <= 5.50\(abom.8.6\)c0 | cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg4005-b50a_firmware | <= 5.17\(abqa.3\)c0 | cpe:2.3:o:zyxel:vmg4005-b50a_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg4005-b60a_firmware | <= 5.17\(abqa.3\)c0 | cpe:2.3:o:zyxel:vmg4005-b60a_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg4005-b50b_firmware | <= 5.13\(abrl.5.3\)c0 | cpe:2.3:o:zyxel:vmg4005-b50b_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg8623-t50b_firmware | <= 5.50\(abpm.9.5\)c0 | cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:* |
| zyxel | vmg8825-t50k_firmware | <= 5.50\(abom.8.6\)c0 | cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:* |
| zyxel | ax7501-b0_firmware | <= 5.17\(abpc.6.1\)c0 | cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | ax7501-b1_firmware | <= 5.17\(abpc.6.1\)c0 | cpe:2.3:o:zyxel:ax7501-b1_firmware:*:*:*:*:*:*:*:* |
| zyxel | pe3301-00_firmware | <= 5.63\(acmt.1.1\)c0 | cpe:2.3:o:zyxel:pe3301-00_firmware:*:*:*:*:*:*:*:* |
| zyxel | pe5301-01_firmware | <= 5.63\(acoj.1.1\)c0 | cpe:2.3:o:zyxel:pe5301-01_firmware:*:*:*:*:*:*:*:* |
| zyxel | pm3100-t0_firmware | <= 5.42\(acbf.3\)c0 | cpe:2.3:o:zyxel:pm3100-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | pm5100-t0_firmware | <= 5.42\(acbf.3\)c0 | cpe:2.3:o:zyxel:pm5100-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | pm7500-00_firmware | <= 5.61\(ackk.1\)c0 | cpe:2.3:o:zyxel:pm7500-00_firmware:*:*:*:*:*:*:*:* |
| zyxel | pm7300-t0_firmware | <= 5.42\(abyy.3\)c0 | cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | px3321-t1_firmware | <= 5.44\(acjb.1.3\)c0 | cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:* |
| zyxel | px3321-t1_firmware | <= 5.44\(achk.1\)c0 | cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:* |
| zyxel | px5301-t0_firmware | <= 5.44\(ackb.0.4\)c0 | cpe:2.3:o:zyxel:px5301-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | we3300-00_firmware | <= 5.70\(acka.0\)c0 | cpe:2.3:o:zyxel:we3300-00_firmware:*:*:*:*:*:*:*:* |
| zyxel | wx3100-t0_firmware | <= 5.50\(abvl.4.7\)c0 | cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | wx3401-b0_firmware | <= 5.17\(abve.2.8\)c0 | cpe:2.3:o:zyxel:wx3401-b0_firmware:*:*:*:*:*:*:*:* |
| zyxel | wx3401-b1_firmware | <= 5.17\(abve.2.8\)c0 | cpe:2.3:o:zyxel:wx3401-b1_firmware:*:*:*:*:*:*:*:* |
| zyxel | wx5600-t0_firmware | <= 5.70\(aceb.4.1\)c0 | cpe:2.3:o:zyxel:wx5600-t0_firmware:*:*:*:*:*:*:*:* |
| zyxel | wx5610-b0_firmware | <= 5.18\(acgj.0.3\)c0 | cpe:2.3:o:zyxel:wx5610-b0_firmware:*:*:*:*:*:*:*:* |