CVE-2019-7477

A vulnerability in SonicWall SonicOS and SonicOSv TLS CBC Cipher allow remote attackers to obtain sensitive plaintext data when CBC cipher suites are enabled. This vulnerability affected SonicOS Gen 5 version 5.9.1.10 and earlier, Gen 6 version 6.2.7.3, 6.5.1.3, 6.5.2.2, 6.5.3.1, 6.2.7.8, 6.4.0.0, 6.5.1.8, 6.0.5.3-86o and SonicOSv 6.5.0.2-8v_RC363 (VMWARE), 6.5.0.2.8v_RC367 (AZURE), SonicOSv 6.5.0.2.8v_RC368 (AWS), SonicOSv 6.5.0.2.8v_RC366 (HYPER_V).

Published: 2019-04-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-7477 is rated Moderate Risk (53.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.19%). EPSS rose +1.03% over the last day, indicating growing attacker interest. 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-2019-7477

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 0.16% 1.19% +1.03%
2 2025-03-30 0.14% 0.16% +0.02%
3 2025-03-29 — 0.14% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-7477

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/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:N)
No account or special rights needed—anonymous or random user is enough.
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.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/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:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-7477

Affected software / configurations for CVE-2019-7477

Vendor Product Version Raw CPE
sonicwall sonicos <= 5.9.1.10 cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
sonicwall sonicos 6.0.5.3-86o cpe:2.3:o:sonicwall:sonicos:6.0.5.3-86o:*:*:*:*:*:*:*
sonicwall sonicos 6.2.7.3 cpe:2.3:o:sonicwall:sonicos:6.2.7.3:*:*:*:*:*:*:*
sonicwall sonicos 6.2.7.8 cpe:2.3:o:sonicwall:sonicos:6.2.7.8:*:*:*:*:*:*:*
sonicwall sonicos 6.4.0.0 cpe:2.3:o:sonicwall:sonicos:6.4.0.0:*:*:*:*:*:*:*
sonicwall sonicos 6.5.1.3 cpe:2.3:o:sonicwall:sonicos:6.5.1.3:*:*:*:*:*:*:*
sonicwall sonicos 6.5.1.8 cpe:2.3:o:sonicwall:sonicos:6.5.1.8:*:*:*:*:*:*:*
sonicwall sonicos 6.5.2.2 cpe:2.3:o:sonicwall:sonicos:6.5.2.2:*:*:*:*:*:*:*
sonicwall sonicos 6.5.3.1 cpe:2.3:o:sonicwall:sonicos:6.5.3.1:*:*:*:*:*:*:*
sonicwall sonicosv 6.5.0.2-8v_rc363 cpe:2.3:o:sonicwall:sonicosv:6.5.0.2-8v_rc363:*:*:*:*:vmware:*:*
sonicwall sonicosv 6.5.0.2.8v_rc366 cpe:2.3:o:sonicwall:sonicosv:6.5.0.2.8v_rc366:*:*:*:*:hyper_v:*:*
sonicwall sonicosv 6.5.0.2.8v_rc367 cpe:2.3:o:sonicwall:sonicosv:6.5.0.2.8v_rc367:*:*:*:*:azure:*:*
sonicwall sonicosv 6.5.0.2.8v_rc368 cpe:2.3:o:sonicwall:sonicosv:6.5.0.2.8v_rc368:*:*:*:*:aws:*:*

References for CVE-2019-7477

cvelogic Threat Intelligence