CVE-2019-5986

Cross-site request forgery (CSRF) vulnerability in Hikari Denwa router/Home GateWay (Hikari Denwa router/Home GateWay provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION PR-S300NE/RT-S300NE/RV-S340NE firmware version Ver. 19.41 and earlier, PR-S300HI/RT-S300HI/RV-S340HI firmware version Ver.19.01.0005 and earlier, PR-S300SE/RT-S300SE/RV-S340SE firmware version Ver.19.40 and earlier, PR-400NE/RT-400NE/RV-440NE firmware version Ver.7.42 and earlier, PR-400KI/RT-400KI/RV-440KI firmware version Ver.07.00.1010 and earlier, PR-400MI/RT-400MI/RV-440MI firmware version Ver. 07.00.1012 and earlier, PR-500KI/RT-500KI firmware version Ver.01.00.0090 and earlier, RS-500KI firmware version Ver.01.00.0070 and earlier, PR-500MI/RT-500MI firmware version Ver.01.01.0014 and earlier, and RS-500MI firmware version Ver.03.01.0019 and earlier, and Hikari Denwa router/Home GateWay provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION PR-S300NE/RT-S300NE/RV-S340NE firmware version Ver. 19.41 and earlier, PR-S300HI/RT-S300HI/RV-S340HI firmware version Ver.19.01.0005 and earlier, PR-S300SE/RT-S300SE/RV-S340SE firmware version Ver.19.40 and earlier, PR-400NE/RT-400NE/RV-440NE firmware version Ver.7.42 and earlier, PR-400KI/RT-400KI/RV-440KI firmware version Ver.07.00.1010 and earlier, PR-400MI/RT-400MI/RV-440MI firmware version Ver. 07.00.1012 and earlier, PR-500KI/RT-500KI firmware version Ver.01.00.0090 and earlier, and PR-500MI/RT-500MI firmware version Ver.01.01.0011 and earlier) allow remote attackers to hijack the authentication of administrators via unspecified vectors.

Published: 2019-09-12 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-5986 is rated Moderate Risk (53.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.78%). 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-2019-5986

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% 0.78% +0.63%
2 2025-03-17 0.20% 0.15% -0.05%
3 2024-12-17 — 0.20% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-5986

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2019-5986

Affected software / configurations for CVE-2019-5986

Vendor Product Version Raw CPE
ntt-east pr-s300ne_firmware <= 19.41 cpe:2.3:o:ntt-east:pr-s300ne_firmware:*:*:*:*:*:*:*:*
ntt-east rt-s300ne_firmware <= 19.41 cpe:2.3:o:ntt-east:rt-s300ne_firmware:*:*:*:*:*:*:*:*
ntt-east rv-s340ne_firmware <= 19.41 cpe:2.3:o:ntt-east:rv-s340ne_firmware:*:*:*:*:*:*:*:*
ntt-east pr-s300hi_firmware <= 19.01.0005 cpe:2.3:o:ntt-east:pr-s300hi_firmware:*:*:*:*:*:*:*:*
ntt-east rt-s300hi_firmware <= 19.01.0005 cpe:2.3:o:ntt-east:rt-s300hi_firmware:*:*:*:*:*:*:*:*
ntt-east rv-s340hi_firmware <= 19.01.0005 cpe:2.3:o:ntt-east:rv-s340hi_firmware:*:*:*:*:*:*:*:*
ntt-east pr-s300se_firmware <= 19.40 cpe:2.3:o:ntt-east:pr-s300se_firmware:*:*:*:*:*:*:*:*
ntt-east rt-s300se_firmware <= 19.40 cpe:2.3:o:ntt-east:rt-s300se_firmware:*:*:*:*:*:*:*:*
ntt-east rv-s340se_firmware <= 19.40 cpe:2.3:o:ntt-east:rv-s340se_firmware:*:*:*:*:*:*:*:*
ntt-east pr-400ne_firmware <= 7.42 cpe:2.3:o:ntt-east:pr-400ne_firmware:*:*:*:*:*:*:*:*
ntt-east rt-400ne_firmware <= 7.42 cpe:2.3:o:ntt-east:rt-400ne_firmware:*:*:*:*:*:*:*:*
ntt-east rv-440ne_firmware <= 7.42 cpe:2.3:o:ntt-east:rv-440ne_firmware:*:*:*:*:*:*:*:*
ntt-east pr-400ki_firmware <= 07.00.1010 cpe:2.3:o:ntt-east:pr-400ki_firmware:*:*:*:*:*:*:*:*
ntt-east rt-400ki_firmware <= 07.00.1010 cpe:2.3:o:ntt-east:rt-400ki_firmware:*:*:*:*:*:*:*:*
ntt-east rv-440ki_firmware <= 07.00.1010 cpe:2.3:o:ntt-east:rv-440ki_firmware:*:*:*:*:*:*:*:*
ntt-east pr-400mi_firmware <= 07.00.1012 cpe:2.3:o:ntt-east:pr-400mi_firmware:*:*:*:*:*:*:*:*
ntt-east rt-400mi_firmware <= 07.00.1012 cpe:2.3:o:ntt-east:rt-400mi_firmware:*:*:*:*:*:*:*:*
ntt-east rv-440mi_firmware <= 07.00.1012 cpe:2.3:o:ntt-east:rv-440mi_firmware:*:*:*:*:*:*:*:*
ntt-east pr-500ki_firmware <= 01.00.0090 cpe:2.3:o:ntt-east:pr-500ki_firmware:*:*:*:*:*:*:*:*
ntt-east rt-500ki_firmware <= 01.00.0090 cpe:2.3:o:ntt-east:rt-500ki_firmware:*:*:*:*:*:*:*:*
ntt-east rs-500ki_firmware <= 01.00.0070 cpe:2.3:o:ntt-east:rs-500ki_firmware:*:*:*:*:*:*:*:*
ntt-east pr-500mi_firmware <= 01.01.0014 cpe:2.3:o:ntt-east:pr-500mi_firmware:*:*:*:*:*:*:*:*
ntt-east rt-500mi_firmware <= 01.01.0014 cpe:2.3:o:ntt-east:rt-500mi_firmware:*:*:*:*:*:*:*:*
ntt-east rs-500mi_firmware <= 03.01.0019 cpe:2.3:o:ntt-east:rs-500mi_firmware:*:*:*:*:*:*:*:*
ntt-west pr-s300ne_firmware <= 19.41 cpe:2.3:o:ntt-west:pr-s300ne_firmware:*:*:*:*:*:*:*:*
ntt-west rt-s300ne_firmware <= 19.41 cpe:2.3:o:ntt-west:rt-s300ne_firmware:*:*:*:*:*:*:*:*
ntt-west rv-s340ne_firmware <= 19.41 cpe:2.3:o:ntt-west:rv-s340ne_firmware:*:*:*:*:*:*:*:*
ntt-west pr-s300hi_firmware <= 19.01.0005 cpe:2.3:o:ntt-west:pr-s300hi_firmware:*:*:*:*:*:*:*:*
ntt-west rt-s300hi_firmware <= 19.01.0005 cpe:2.3:o:ntt-west:rt-s300hi_firmware:*:*:*:*:*:*:*:*
ntt-west rv-s340hi_firmware <= 19.01.0005 cpe:2.3:o:ntt-west:rv-s340hi_firmware:*:*:*:*:*:*:*:*
ntt-west pr-s300se_firmware <= 19.40 cpe:2.3:o:ntt-west:pr-s300se_firmware:*:*:*:*:*:*:*:*
ntt-west rt-s300se_firmware <= 19.40 cpe:2.3:o:ntt-west:rt-s300se_firmware:*:*:*:*:*:*:*:*
ntt-west rv-s340se_firmware <= 19.40 cpe:2.3:o:ntt-west:rv-s340se_firmware:*:*:*:*:*:*:*:*
ntt-west pr-400ne_firmware <= 7.42 cpe:2.3:o:ntt-west:pr-400ne_firmware:*:*:*:*:*:*:*:*
ntt-west rt-400ne_firmware <= 7.42 cpe:2.3:o:ntt-west:rt-400ne_firmware:*:*:*:*:*:*:*:*
ntt-west rv-440ne_firmware <= 7.42 cpe:2.3:o:ntt-west:rv-440ne_firmware:*:*:*:*:*:*:*:*
ntt-west pr-400ki_firmware <= 07.00.1010 cpe:2.3:o:ntt-west:pr-400ki_firmware:*:*:*:*:*:*:*:*
ntt-west rt-400ki_firmware <= 07.00.1010 cpe:2.3:o:ntt-west:rt-400ki_firmware:*:*:*:*:*:*:*:*
ntt-west rv-440ki_firmware <= 07.00.1010 cpe:2.3:o:ntt-west:rv-440ki_firmware:*:*:*:*:*:*:*:*
ntt-west pr-400mi_firmware <= 07.00.1012 cpe:2.3:o:ntt-west:pr-400mi_firmware:*:*:*:*:*:*:*:*
ntt-west rt-400mi_firmware <= 07.00.1012 cpe:2.3:o:ntt-west:rt-400mi_firmware:*:*:*:*:*:*:*:*
ntt-west rv-440mi_firmware <= 07.00.1012 cpe:2.3:o:ntt-west:rv-440mi_firmware:*:*:*:*:*:*:*:*
ntt-west pr-500ki_firmware <= 01.00.0090 cpe:2.3:o:ntt-west:pr-500ki_firmware:*:*:*:*:*:*:*:*
ntt-west rt-500ki_firmware <= 01.00.0090 cpe:2.3:o:ntt-west:rt-500ki_firmware:*:*:*:*:*:*:*:*
ntt-west pr-500mi_firmware <= 01.01.0011 cpe:2.3:o:ntt-west:pr-500mi_firmware:*:*:*:*:*:*:*:*
ntt-west rt-500mi_firmware <= 01.01.0011 cpe:2.3:o:ntt-west:rt-500mi_firmware:*:*:*:*:*:*:*:*

References for CVE-2019-5986

cvelogic Threat Intelligence