How severe is CVE-2019-8318?

CVE-2019-8318 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-8318 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8318?

CVE-2019-8318 affects Dlink Dir-878 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8318?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-8318 published?

CVE-2019-8318 was published on 2019-02-13 and last updated on 2026-06-17.

CVE-2019-8318

CVE-2019-8318 is a high-severity vulnerability in Dlink Dir-878 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Dlink Dir-878 Firmware
Published: 2019-02-13
Last modified: 2026-06-17

Description

An issue was discovered on D-Link DIR-878 devices with firmware 1.12A1. This issue is a Command Injection allowing a remote attacker to execute arbitrary code, and get a root shell. A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted /HNAP1 POST request. This occurs when any HNAP API function triggers a call to the twsystem function with untrusted input from the request body for the SetSysEmailSettings API function, as demonstrated by shell metacharacters in the SMTPServerPort field.

Frequently asked questions

What is CVE-2019-8318?: An issue was discovered on D-Link DIR-878 devices with firmware 1.12A1. This issue is a Command Injection allowing a remote attacker to execute arbitrary code, and get a root shell. A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted /HNAP1 POST request. This occurs when any HNAP API function triggers a call to the twsystem function with untrusted input from the request body for the SetSysEmailSettings API function, as demonstrated by shell metacharacters in the SMTPServerPort field.
How severe is CVE-2019-8318?: CVE-2019-8318 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-8318 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8318?: CVE-2019-8318 affects Dlink Dir-878 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8318?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-8318 published?: CVE-2019-8318 was published on 2019-02-13 and last updated on 2026-06-17.

References

https://github.com/lieanu/vuls/blob/master/dlink/DIR-878/mail.md

Affected products (1)

cpe:2.3:o:dlink:dir-878_firmware:1.12a1:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-878 Firmware

CVE-2023-27720 — Critical (CVSS 9.8): D-Link DIR878 1.30B08 was discovered to contain a stack overflow in the sub_48d630 function. This vulnerability allows…
CVE-2023-24800 — Critical (CVSS 9.8): D-Link DIR878 DIR_878_FW120B05 was discovered to contain a stack overflow in the sub_495220 function. This…
CVE-2023-24799 — Critical (CVSS 9.8): D-Link DIR878 DIR_878_FW120B05 was discovered to contain a stack overflow in the sub_48AF78 function. This…
CVE-2023-24798 — Critical (CVSS 9.8): D-Link DIR878 DIR_878_FW120B05 was discovered to contain a stack overflow in the sub_475FB0 function. This…
CVE-2022-44801 — Critical (CVSS 9.8): D-Link DIR-878 1.02B05 is vulnerable to Incorrect Access Control.
CVE-2022-44202 — Critical (CVSS 9.8): D-Link DIR878 1.02B04 and 1.02B05 are vulnerable to Buffer Overflow.

All CVEs affecting Dlink Dir-878 Firmware →

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