CVE-2026-78021
CVE-2026-78021 — Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains a Generation of Error Message Containing Sensitive…
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains a Generation of Error Message Containing Sensitive Information vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure and Information exposure.
Published Updated Sources: NVD, Dell (CNA), GitHub, SOCRadar CTI
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Exploit code
public exploit, none observed
EPSS
0%
ahead of 0% of scored CVEs
CVSS base
3.7
low
Remediation
The vendor's own words where we have them.
Upgrade Secure Connect Gateway (SCG) Policy Manager to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.
First 24 hours
Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.
- Identify exposed assets running affected vendor/product/version combinations.
- Prioritize based on EPSS, PoC availability, and external exposure.
- Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.
Affected scope
Vendor, product and version as the advisories word them.
| Vendor | Product | Versions | Status |
|---|---|---|---|
| Dell | Secure Connect Gateway (SCG) Policy Manager | 0 to < 5.36.00.16 or late | Vulnerable |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Availability
None
Confidentiality
Low
Integrity
None
Scope
Unchanged
Attack Complexity
High
Attack Vector
Network
Privileges Req
None
User Interaction
None
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 3.7 | CVSS 3.1 | low | 2.2 | 1.4 | emc.com (CNA), Dell (CNA) |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
What this weakness leads to
MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.
CWE-209 · Generation of Error Message Containing Sensitive Information
- Read Application Data
Mitigation: Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success. If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files. Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
Weakness & attack patterns
- CWE-209
Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.
Public exploit
Capability, not use: code existing is a different claim from anyone running it.
Repositories
1
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Prioritize edge telemetry for network-reachable Secure Connect Gateway (SCG) Policy Manager.
- Monitor for scanner or exploit-pattern traffic after 1 public PoC repositories were reported.
Timeline
What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.
- 2026
Added · CVSS 3.1 3.7 (AV:N)
Oct 9, 2026 · NVD
Initial · CVE published
Oct 9, 2026 · NVD
CVE published by NIST.
Oct 9, 2026 · SOCRadar CTI
References
1 on the record
Elsewhere on this site
- Dellevery CVE for this vendor
- Info Disclosuresame class
- CWE-209other pages naming this weakness
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record1
What should defenders know first?
CVE-2026-78021 is Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains a Generation of Error Message Containing Sensitive…, a low vulnerability affecting Secure Connect Gateway (SCG) Policy Manager from Dell. The current evidence does not list it in CISA KEV, and the exploit status is: Active exploitation is not confirmed from current sources for CVE-2026-78021. Public exploit evidence is: 1 public PoC repositories reported; 0 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 3.7 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.