CVE-2017-15327 [Medium] | Information Disclosure in S12700 Firmware

S12700 V200R005C00, V200R006C00, V200R006C01, V200R007C00, V200R007C01, V200R007C20, V200R008C00, V200R008C06, V200R009C00, V200R010C00, S7700 V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R006C01, V200R007C00, V200R007C01, V200R008C00, V200R008C06, V200R009C00, V200R010C00, S9700 V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R006C01, V200R007C00, V200R007C01, V200R008C00, V200R009C00, V200R010C00 have an improper authorization vulnerability on Huawei switch products. The system incorrectly performs an authorization check when a normal user attempts to access certain information which is supposed to be accessed only by authenticated user. Successful exploit could cause information disclosure.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.05%	0.49%	+0.44%
2	2023-07-08	0.05%	0.05%	+0.01%
3	2023-03-07	—	0.05%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.05%

0.49%

+0.44%

2023-07-08

0.05%

+0.01%

2023-03-07

—

0.05%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
4.3	3.0	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	2.8	1.4	[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

4.3

3.0

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

2.8

1.4

[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-2017-15327

Vendor	Product	Version	Raw CPE
huawei	s12700_firmware	v200r005c00	cpe:2.3:o:huawei:s12700_firmware:v200r005c00:::::::*
huawei	s12700_firmware	v200r006c00	cpe:2.3:o:huawei:s12700_firmware:v200r006c00:::::::*
huawei	s12700_firmware	v200r006c01	cpe:2.3:o:huawei:s12700_firmware:v200r006c01:::::::*
huawei	s12700_firmware	v200r007c00	cpe:2.3:o:huawei:s12700_firmware:v200r007c00:::::::*
huawei	s12700_firmware	v200r007c01	cpe:2.3:o:huawei:s12700_firmware:v200r007c01:::::::*
huawei	s12700_firmware	v200r007c20	cpe:2.3:o:huawei:s12700_firmware:v200r007c20:::::::*
huawei	s12700_firmware	v200r008c00	cpe:2.3:o:huawei:s12700_firmware:v200r008c00:::::::*
huawei	s12700_firmware	v200r008c06	cpe:2.3:o:huawei:s12700_firmware:v200r008c06:::::::*
huawei	s12700_firmware	v200r009c00	cpe:2.3:o:huawei:s12700_firmware:v200r009c00:::::::*
huawei	s12700_firmware	v200r010c00	cpe:2.3:o:huawei:s12700_firmware:v200r010c00:::::::*
huawei	s7700_firmware	v200r001c00	cpe:2.3:o:huawei:s7700_firmware:v200r001c00:::::::*
huawei	s7700_firmware	v200r001c01	cpe:2.3:o:huawei:s7700_firmware:v200r001c01:::::::*
huawei	s7700_firmware	v200r002c00	cpe:2.3:o:huawei:s7700_firmware:v200r002c00:::::::*
huawei	s7700_firmware	v200r003c00	cpe:2.3:o:huawei:s7700_firmware:v200r003c00:::::::*
huawei	s7700_firmware	v200r005c00	cpe:2.3:o:huawei:s7700_firmware:v200r005c00:::::::*
huawei	s7700_firmware	v200r006c00	cpe:2.3:o:huawei:s7700_firmware:v200r006c00:::::::*
huawei	s7700_firmware	v200r006c01	cpe:2.3:o:huawei:s7700_firmware:v200r006c01:::::::*
huawei	s7700_firmware	v200r007c00	cpe:2.3:o:huawei:s7700_firmware:v200r007c00:::::::*
huawei	s7700_firmware	v200r007c01	cpe:2.3:o:huawei:s7700_firmware:v200r007c01:::::::*
huawei	s7700_firmware	v200r008c00	cpe:2.3:o:huawei:s7700_firmware:v200r008c00:::::::*
huawei	s7700_firmware	v200r008c06	cpe:2.3:o:huawei:s7700_firmware:v200r008c06:::::::*
huawei	s7700_firmware	v200r009c00	cpe:2.3:o:huawei:s7700_firmware:v200r009c00:::::::*
huawei	s7700_firmware	v200r010c00	cpe:2.3:o:huawei:s7700_firmware:v200r010c00:::::::*
huawei	s9700_firmware	v200r001c00	cpe:2.3:o:huawei:s9700_firmware:v200r001c00:::::::*
huawei	s9700_firmware	v200r001c01	cpe:2.3:o:huawei:s9700_firmware:v200r001c01:::::::*
huawei	s9700_firmware	v200r002c00	cpe:2.3:o:huawei:s9700_firmware:v200r002c00:::::::*
huawei	s9700_firmware	v200r003c00	cpe:2.3:o:huawei:s9700_firmware:v200r003c00:::::::*
huawei	s9700_firmware	v200r005c00	cpe:2.3:o:huawei:s9700_firmware:v200r005c00:::::::*
huawei	s9700_firmware	v200r006c00	cpe:2.3:o:huawei:s9700_firmware:v200r006c00:::::::*
huawei	s9700_firmware	v200r006c01	cpe:2.3:o:huawei:s9700_firmware:v200r006c01:::::::*
huawei	s9700_firmware	v200r007c00	cpe:2.3:o:huawei:s9700_firmware:v200r007c00:::::::*
huawei	s9700_firmware	v200r007c01	cpe:2.3:o:huawei:s9700_firmware:v200r007c01:::::::*
huawei	s9700_firmware	v200r008c00	cpe:2.3:o:huawei:s9700_firmware:v200r008c00:::::::*
huawei	s9700_firmware	v200r009c00	cpe:2.3:o:huawei:s9700_firmware:v200r009c00:::::::*
huawei	s9700_firmware	v200r010c00	cpe:2.3:o:huawei:s9700_firmware:v200r010c00:::::::*

References for CVE-2017-15327

URL	Tags
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180328-01-authentication-en	Vendor Advisory

URL

CVE-2017-15327

Exploit prediction scoring system (EPSS) score for CVE-2017-15327

Common vulnerability scoring system (CVSS) metrics for CVE-2017-15327

Weakness enumeration for CVE-2017-15327

Affected software / configurations for CVE-2017-15327

References for CVE-2017-15327