CVE-2023-27520

Cross-site request forgery (CSRF) vulnerability in SEIKO EPSON printers/network interface Web Config allows a remote unauthenticated attacker to hijack the authentication and perform unintended operations by having a logged-in user view a malicious page. [Note] Web Config is the software that allows users to check the status and change the settings of SEIKO EPSON printers/network interface via a web browser. According to SEIKO EPSON CORPORATION, it is also called as Remote Manager in some products. Web Config is pre-installed in some printers/network interface provided by SEIKO EPSON CORPORATION. For the details of the affected product names/model numbers, refer to the information provided by the vendor.

Published: 2023-04-11 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-27520 is rated Moderate Risk (43.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.27%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-27520

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 2026-01-04 0.21% 0.27% +0.05%
2 2025-11-21 0.13% 0.21% +0.08%
3 2025-11-18 — 0.13% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-27520

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-27520

Affected software / configurations for CVE-2023-27520

Vendor Product Version Raw CPE
epson lp-9200ps2_firmware — cpe:2.3:o:epson:lp-9200ps2_firmware:-:*:*:*:*:*:*:*
epson lp-9200ps3_firmware — cpe:2.3:o:epson:lp-9200ps3_firmware:-:*:*:*:*:*:*:*
epson lp-8200c_firmware — cpe:2.3:o:epson:lp-8200c_firmware:-:*:*:*:*:*:*:*
epson lp-9600_firmware — cpe:2.3:o:epson:lp-9600_firmware:-:*:*:*:*:*:*:*
epson lp-9600s_firmware — cpe:2.3:o:epson:lp-9600s_firmware:-:*:*:*:*:*:*:*
epson lp-9300_firmware — cpe:2.3:o:epson:lp-9300_firmware:-:*:*:*:*:*:*:*
epson lp-8500c_firmware — cpe:2.3:o:epson:lp-8500c_firmware:-:*:*:*:*:*:*:*
epson lp-8700ps3_firmware — cpe:2.3:o:epson:lp-8700ps3_firmware:-:*:*:*:*:*:*:*
epson lp-9800c_firmware — cpe:2.3:o:epson:lp-9800c_firmware:-:*:*:*:*:*:*:*
epson lp-s5500_firmware — cpe:2.3:o:epson:lp-s5500_firmware:-:*:*:*:*:*:*:*
epson lp-9200b_firmware — cpe:2.3:o:epson:lp-9200b_firmware:-:*:*:*:*:*:*:*
epson lp-9200c_firmware — cpe:2.3:o:epson:lp-9200c_firmware:-:*:*:*:*:*:*:*
epson lp-s4500_firmware — cpe:2.3:o:epson:lp-s4500_firmware:-:*:*:*:*:*:*:*
epson lp-s6500_firmware — cpe:2.3:o:epson:lp-s6500_firmware:-:*:*:*:*:*:*:*
epson lp-s7000_firmware — cpe:2.3:o:epson:lp-s7000_firmware:-:*:*:*:*:*:*:*
epson lp-s5000_firmware — cpe:2.3:o:epson:lp-s5000_firmware:-:*:*:*:*:*:*:*
epson lp-s4000_firmware — cpe:2.3:o:epson:lp-s4000_firmware:-:*:*:*:*:*:*:*
epson lp-s6000_firmware — cpe:2.3:o:epson:lp-s6000_firmware:-:*:*:*:*:*:*:*
epson lp-s5300_firmware — cpe:2.3:o:epson:lp-s5300_firmware:-:*:*:*:*:*:*:*
epson lp-s5300r_firmware — cpe:2.3:o:epson:lp-s5300r_firmware:-:*:*:*:*:*:*:*
epson lp-s300n_firmware — cpe:2.3:o:epson:lp-s300n_firmware:-:*:*:*:*:*:*:*
epson lp-s310n_firmware — cpe:2.3:o:epson:lp-s310n_firmware:-:*:*:*:*:*:*:*
epson lp-s3000_firmware — cpe:2.3:o:epson:lp-s3000_firmware:-:*:*:*:*:*:*:*
epson lp-s3000r_firmware — cpe:2.3:o:epson:lp-s3000r_firmware:-:*:*:*:*:*:*:*
epson lp-s3000z_firmware — cpe:2.3:o:epson:lp-s3000z_firmware:-:*:*:*:*:*:*:*
epson lp-s3000ps_firmware — cpe:2.3:o:epson:lp-s3000ps_firmware:-:*:*:*:*:*:*:*
epson lp-s7500_firmware — cpe:2.3:o:epson:lp-s7500_firmware:-:*:*:*:*:*:*:*
epson lp-s7500ps_firmware — cpe:2.3:o:epson:lp-s7500ps_firmware:-:*:*:*:*:*:*:*
epson lp-s3500_firmware — cpe:2.3:o:epson:lp-s3500_firmware:-:*:*:*:*:*:*:*
epson lp-s4200_firmware — cpe:2.3:o:epson:lp-s4200_firmware:-:*:*:*:*:*:*:*
epson lp-s9000_firmware — cpe:2.3:o:epson:lp-s9000_firmware:-:*:*:*:*:*:*:*
epson lp-s7100_firmware — cpe:2.3:o:epson:lp-s7100_firmware:-:*:*:*:*:*:*:*
epson lp-s8100_firmware — cpe:2.3:o:epson:lp-s8100_firmware:-:*:*:*:*:*:*:*
epson prifnw1_firmware — cpe:2.3:o:epson:prifnw1_firmware:-:*:*:*:*:*:*:*
epson prifnw1s_firmware — cpe:2.3:o:epson:prifnw1s_firmware:-:*:*:*:*:*:*:*
epson prifnw2_firmware — cpe:2.3:o:epson:prifnw2_firmware:-:*:*:*:*:*:*:*
epson prifnw2ac_firmware — cpe:2.3:o:epson:prifnw2ac_firmware:-:*:*:*:*:*:*:*
epson prifnw2s_firmware — cpe:2.3:o:epson:prifnw2s_firmware:-:*:*:*:*:*:*:*
epson prifnw2sac_firmware — cpe:2.3:o:epson:prifnw2sac_firmware:-:*:*:*:*:*:*:*
epson prifnw3_firmware — cpe:2.3:o:epson:prifnw3_firmware:-:*:*:*:*:*:*:*
epson prifnw3s_firmware — cpe:2.3:o:epson:prifnw3s_firmware:-:*:*:*:*:*:*:*
epson prifnw6_firmware — cpe:2.3:o:epson:prifnw6_firmware:-:*:*:*:*:*:*:*
epson prifnw7_firmware — cpe:2.3:o:epson:prifnw7_firmware:-:*:*:*:*:*:*:*
epson prifnw7u_firmware — cpe:2.3:o:epson:prifnw7u_firmware:-:*:*:*:*:*:*:*
epson prifnw7s_firmware — cpe:2.3:o:epson:prifnw7s_firmware:-:*:*:*:*:*:*:*
epson pa-w11g_firmware — cpe:2.3:o:epson:pa-w11g_firmware:-:*:*:*:*:*:*:*
epson pa-w11g2_firmware — cpe:2.3:o:epson:pa-w11g2_firmware:-:*:*:*:*:*:*:*
epson esnsb1_firmware — cpe:2.3:o:epson:esnsb1_firmware:-:*:*:*:*:*:*:*
epson esnsb2_firmware — cpe:2.3:o:epson:esnsb2_firmware:-:*:*:*:*:*:*:*
epson esifnw1_firmware — cpe:2.3:o:epson:esifnw1_firmware:-:*:*:*:*:*:*:*
epson sc-t3250_firmware — cpe:2.3:o:epson:sc-t3250_firmware:-:*:*:*:*:*:*:*
epson sc-t3255_firmware — cpe:2.3:o:epson:sc-t3255_firmware:-:*:*:*:*:*:*:*
epson sc-t5250_firmware — cpe:2.3:o:epson:sc-t5250_firmware:-:*:*:*:*:*:*:*
epson sc-t5255_firmware — cpe:2.3:o:epson:sc-t5255_firmware:-:*:*:*:*:*:*:*
epson sc-t7250_firmware — cpe:2.3:o:epson:sc-t7250_firmware:-:*:*:*:*:*:*:*
epson sc-t7255_firmware — cpe:2.3:o:epson:sc-t7255_firmware:-:*:*:*:*:*:*:*
epson sc-t5250d_firmware — cpe:2.3:o:epson:sc-t5250d_firmware:-:*:*:*:*:*:*:*
epson sc-t5255d_firmware — cpe:2.3:o:epson:sc-t5255d_firmware:-:*:*:*:*:*:*:*
epson sc-t7250d_firmware — cpe:2.3:o:epson:sc-t7250d_firmware:-:*:*:*:*:*:*:*
epson sc-t7255d_firmware — cpe:2.3:o:epson:sc-t7255d_firmware:-:*:*:*:*:*:*:*
epson sc-p5050_firmware — cpe:2.3:o:epson:sc-p5050_firmware:-:*:*:*:*:*:*:*
epson sc-p7050_firmware — cpe:2.3:o:epson:sc-p7050_firmware:-:*:*:*:*:*:*:*
epson sc-p9050_firmware — cpe:2.3:o:epson:sc-p9050_firmware:-:*:*:*:*:*:*:*
epson sc-p6050_firmware — cpe:2.3:o:epson:sc-p6050_firmware:-:*:*:*:*:*:*:*
epson sc-p8050_firmware — cpe:2.3:o:epson:sc-p8050_firmware:-:*:*:*:*:*:*:*
epson sc-p20050_firmware — cpe:2.3:o:epson:sc-p20050_firmware:-:*:*:*:*:*:*:*
epson sc-s80650_firmware — cpe:2.3:o:epson:sc-s80650_firmware:-:*:*:*:*:*:*:*
epson sc-s60650_firmware — cpe:2.3:o:epson:sc-s60650_firmware:-:*:*:*:*:*:*:*
epson sc-s40650_firmware — cpe:2.3:o:epson:sc-s40650_firmware:-:*:*:*:*:*:*:*
epson sc-s60650l_firmware — cpe:2.3:o:epson:sc-s60650l_firmware:-:*:*:*:*:*:*:*
epson sc-s80650l_firmware — cpe:2.3:o:epson:sc-s80650l_firmware:-:*:*:*:*:*:*:*
epson sc-f7200_firmware — cpe:2.3:o:epson:sc-f7200_firmware:-:*:*:*:*:*:*:*
epson sc-f6350_firmware — cpe:2.3:o:epson:sc-f6350_firmware:-:*:*:*:*:*:*:*
epson sc-f9450_firmware — cpe:2.3:o:epson:sc-f9450_firmware:-:*:*:*:*:*:*:*
epson sc-f9450h_firmware — cpe:2.3:o:epson:sc-f9450h_firmware:-:*:*:*:*:*:*:*
epson sc-f2150_firmware — cpe:2.3:o:epson:sc-f2150_firmware:-:*:*:*:*:*:*:*
epson tm-c7500_firmware — cpe:2.3:o:epson:tm-c7500_firmware:-:*:*:*:*:*:*:*
epson tm-c3500_firmware — cpe:2.3:o:epson:tm-c3500_firmware:-:*:*:*:*:*:*:*
epson tm-c3400_firmware — cpe:2.3:o:epson:tm-c3400_firmware:-:*:*:*:*:*:*:*
epson px-b510_firmware — cpe:2.3:o:epson:px-b510_firmware:-:*:*:*:*:*:*:*

References for CVE-2023-27520

URL Tags
https://jvn.jp/en/jp/JVN82424996/ Third Party Advisory
https://www.epson.jp/support/misc_t/230308_oshirase.htm Mitigation Vendor Advisory
cvelogic Threat Intelligence