CVE-2019-15257 [Medium] | Information Disclosure in Spa112 Firmware

A vulnerability in the web-based management interface of Cisco SPA100 Series Analog Telephone Adapters (ATAs) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to improper restrictions on configuration information. An attacker could exploit this vulnerability by sending a request to an affected device through the web-based management interface. A successful exploit could allow the attacker to return running configuration information that could also include sensitive information.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.48%	1.09%	+0.61%
2	2025-11-21	0.24%	0.48%	+0.24%
3	2025-11-18	—	0.24%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.48%

1.09%

+0.61%

2025-11-21

0.24%

0.48%

+0.24%

2025-11-18

—

0.24%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. 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:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	2.8	3.6	[email protected]
6.5	3.0	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. 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:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	2.8	3.6	[email protected]
4.0	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:P/I:N/A:N` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:N) No availability impact.	8.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

2.8

3.6

[email protected]

6.5

3.0

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

2.8

3.6

[email protected]

4.0

2.0

MEDIUM

AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:N): No availability impact.

8.0

2.9

[email protected]

Affected software / configurations for CVE-2019-15257

Vendor	Product	Version	Raw CPE
cisco	spa112_firmware	< 1.4.1	cpe:2.3:o:cisco:spa112_firmware::::::::
cisco	spa112_firmware	1.4.1	cpe:2.3:o:cisco:spa112_firmware:1.4.1:-::::::
cisco	spa112_firmware	1.4.1	cpe:2.3:o:cisco:spa112_firmware:1.4.1:sr1::::::
cisco	spa112_firmware	1.4.1	cpe:2.3:o:cisco:spa112_firmware:1.4.1:sr2::::::
cisco	spa112_firmware	1.4.1	cpe:2.3:o:cisco:spa112_firmware:1.4.1:sr3::::::
cisco	spa122_firmware	< 1.4.1	cpe:2.3:o:cisco:spa122_firmware::::::::
cisco	spa122_firmware	1.4.1	cpe:2.3:o:cisco:spa122_firmware:1.4.1:-::::::
cisco	spa122_firmware	1.4.1	cpe:2.3:o:cisco:spa122_firmware:1.4.1:sr1::::::
cisco	spa122_firmware	1.4.1	cpe:2.3:o:cisco:spa122_firmware:1.4.1:sr2::::::
cisco	spa122_firmware	1.4.1	cpe:2.3:o:cisco:spa122_firmware:1.4.1:sr3::::::

References for CVE-2019-15257

URL	Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-spa-running-config	Vendor Advisory
https://www.tenable.com/security/research/tra-2019-44	Third Party Advisory

URL

CVE-2019-15257 | Cisco SPA100 Series Analog Telephone Adapters Running Configuration Information Disclosure Vulnerability

Exploit prediction scoring system (EPSS) score for CVE-2019-15257

Common vulnerability scoring system (CVSS) metrics for CVE-2019-15257

Weakness enumeration for CVE-2019-15257

Affected software / configurations for CVE-2019-15257

References for CVE-2019-15257