Evidence comparison
Symantec Endpoint Security and Trellix: what the public record shows about each
Both products turn up on endpoint security (edr and xdr) shortlists, so this page puts their two evidence records next to each other: 38 items on Symantec Endpoint Security and 60 on Trellix, each one linked to the source it came from. It does not name a winner, and the section below explains why the numbers cannot be subtracted from one another.
Read the counts correctly
More advisories does not mean less secure. A vulnerability register records what researchers found and what the vendor disclosed. A product deployed in thousands of organisations with a mature disclosure process accumulates far more entries than a product nobody audits. A low count can mean a small install base, a young product or a vendor that publishes little, and a high count often marks the opposite.
The two counts are not measured with equal precision. An advisory is only listed against a vendor when the register ties it to one of its products by name, and vendors differ enormously in how consistently their products are named. Here that gap is 29 unattributable entries for Symantec Endpoint Security against 0 for Trellix, which moves the advisory row far more than the products do. Both numbers are in the table so the difference is visible rather than hidden.
Treat this page as two records shown together, never as one score minus another.
The two records side by side
| Measure | Symantec Endpoint Security | Trellix |
|---|---|---|
| Evidence items in the recordSize of the record, not a quality signal. | 38 | 60 |
| Kinds of source | 3 | 5 |
| Advisories attributed to the vendor's productsCounts scrutiny and deployment breadth. See the caution above. | 5 | 52 |
| Register entries that could not be attributedEntries naming the vendor that could not be tied to one of its products, so they are excluded from the row above. Read the two rows together: where this number is high, the registers describe that vendor's products less consistently, and the advisory count above says more about naming than about the product. | 29 | 0 |
| Of those, in the CISA known-exploited catalogueExploitation observed in the wild. The one count worth reading closely. | 0 | 0 |
| Share from government registers | 89% | 90% |
| Share the vendor cannot edit | 100% | 100% |
| Public practitioner threadsReflects community size as much as product behaviour. | 0 | 2 |
| Most recent entry | Jul 17, 2026 | Jul 14, 2026 |
| Sources last re-queried | Jul 17, 2026 | Jul 17, 2026 |
Where each record comes from
The registers and platforms behind each column, with the body that operates each one. A record resting on government registers carries different weight from one resting on the vendor's own documentation, which is why this is shown per vendor rather than merged.
Symantec Endpoint Security
| Source | Operated by | Classification | Items | Latest |
|---|---|---|---|---|
| European Vulnerability Database | ENISA, European Union | Authoritative | 22 | Dec 01, 2022 |
| CERT-Bund security advisories | BSI, Federal Republic of Germany | Authoritative | 12 | Jun 11, 2026 |
| Analyst, review and reference sources | Recognised analysts, review marketplaces and technology press | Independent | 4 | Jul 17, 2026 |
Trellix
| Source | Operated by | Classification | Items | Latest |
|---|---|---|---|---|
| European Vulnerability Database | ENISA, European Union | Authoritative | 27 | Jul 14, 2026 |
| CERT-Bund security advisories | BSI, Federal Republic of Germany | Authoritative | 25 | Feb 26, 2026 |
| National Vulnerability Database | NIST, United States Department of Commerce | Authoritative | 2 | Jun 26, 2026 |
| Analyst, review and reference sources | Recognised analysts, review marketplaces and technology press | Independent | 3 | Jul 03, 2026 |
| Practitioner discussions | Reddit, public threads | Independent | 3 | May 04, 2026 |
Documented vulnerabilities
Only entries tied to a product of the named vendor by a structural signal are listed: an advisory reference on the vendor's own domain, the vendor as the assigning authority, or the affected product list naming it. Entries that merely mention a vendor in passing are excluded from both columns.
Symantec Endpoint Security
- WID-SEC-2026-1885mediumCVSS 6.5Jun 11, 2026
Affected products: Symantec Endpoint Protection
- WID-SEC-2026-0249mediumCVSS 6.7Apr 29, 2026
Affected products: Symantec Endpoint Protection
- WID-SEC-2025-0920mediumCVSS 5.3Apr 29, 2026
Affected products: Symantec Endpoint Protection
- WID-SEC-2023-0169highCVSS 8.1Jan 23, 2023
Affected products: Symantec Endpoint Protection
- WID-SEC-2022-2214highCVSS 8.8Dec 02, 2022
Affected products: Symantec Endpoint Protection
Trellix
- CVE-2026-12588mediumCVSS 6.0Jul 14, 2026
An attacker with access to an HX 10.0.0 and previous versions, may send specially-crafted data to the HX console.
- CVE-2025-7958highCVSS 7.1Jun 26, 2026
A Code Injection vulnerability existed in Trellix Network Security CM and NX.
- WID-SEC-2026-0538mediumCVSS 6.4Feb 26, 2026
Affected products: Trellix Endpoint Security
- CVE-2025-14963mediumCVSS 6.2Feb 24, 2026
A vulnerability identified in the HX Agent driver file fekern.sys allowed a threat actor with local user access the ability to gain elevated system privileges.
- WID-SEC-2025-2597highCVSS 8.8Nov 14, 2025
Affected products: Trellix Agent
- WID-SEC-2025-1609lowCVSS 4.4Oct 01, 2025
Affected products: Trellix Endpoint Security, Absolute Secure Access
What practitioners report
Public threads naming each product in their own title. Not curated for sentiment, and not counted as a verdict: a loud thread is one team's experience, not a measurement.
Symantec Endpoint Security
Trellix
- r/cybersecurityMay 04, 2026Independent
Trellix discloses data breach after source code repository hack
- r/cybersecurityMay 01, 2026Independent
Security Advisory: Unauthorised Access to Trellix Internal Source Code
What neither record can tell you
The two lists below are the honest holes in each record. Everything a choice between these two actually turns on sits outside both of them.
Symantec Endpoint Security
- A further 29 register entries mention Symantec Endpoint Security without naming a product of Symantec Endpoint Security as affected. They are excluded rather than counted as vulnerabilities.
- No public practitioner discussion naming Symantec Endpoint Security was found in the indexed threads. Operational experience with this product is not represented in this record.
- Pricing, contract terms, notice periods and support commitments are not part of any public register. They come from the vendor and belong in a negotiation record.
- Certification status such as ISO 27001, SOC 2 or BSI C5 has to be checked against the current certificate and its stated scope. A valid certificate can still exclude the product being bought.
Trellix
- Pricing, contract terms, notice periods and support commitments are not part of any public register. They come from the vendor and belong in a negotiation record.
- Certification status such as ISO 27001, SOC 2 or BSI C5 has to be checked against the current certificate and its stated scope. A valid certificate can still exclude the product being bought.
Whether Symantec Endpoint Security is the right choice is not on this page
A record of what is true about a vendor is one half of a decision. The other half is your context: which criteria matter, how heavily each one weighs, what is a hard no, and who has to sign the result off. No public page can know that, and any page that claims to rank vendors for you is guessing at it.
Typical criteria for this category
Needs your case- Detection Accuracy (MITRE ATT&CK coverage)weight
- MDR / Managed Detection & Responseweight
- Deployment Complexityweight
- Automated Response / Remediationweight
- SIEM Integrationweight
Criteria shown as examples for endpoint security (edr and xdr). Weighting and fit are properties of your decision, not of the vendor, so they are not published here.
What DecisionOS adds on top of this record
- The vendor scored against your criteria with your weighting, not against a generic ranking
- A dealbreaker check against your hard constraints: data residency, contract terms, existing stack
- A side-by-side view of the alternatives on your shortlist, built from this same evidence pool
- This evidence mapped onto your compliance scope: NIS2, DORA, ISO 27001, SOC 2
- A decision memo your board can read, with the trade-offs and the reasoning on the record
Questions this page answers
Which is better, Symantec Endpoint Security or Trellix?
This page does not answer that, and no public page can. Better exists only relative to a decision: which criteria matter, how heavily each weighs, what counts as a dealbreaker and which systems the product has to live next to. What this page gives you is the evidence on both, 38 items on Symantec Endpoint Security and 60 on Trellix, each with its source, so the judgement rests on the record rather than on marketing.
Does Symantec Endpoint Security or Trellix have more vulnerabilities?
Trellix currently has 52 attributed advisories in this record and Symantec Endpoint Security has 5. That comparison is easy to misread. A vulnerability register records what researchers found and what the vendor disclosed, so a widely deployed product with an active disclosure process accumulates more entries than one nobody audits. A low count can equally mean a small install base or a vendor that publishes little. The two figures are also not measured with equal precision: an advisory only counts here when a register ties it to a named product, and 29 entries naming Symantec Endpoint Security and 0 naming Trellix could not be tied to one. The count worth reading closely is how many entries appear in the CISA catalogue of known exploited vulnerabilities, which is 0 for Symantec Endpoint Security and 0 for Trellix.
How independent is the evidence on Symantec Endpoint Security and Trellix?
100 percent of the Symantec Endpoint Security record and 100 percent of the Trellix record come from sources the vendor does not control: government vulnerability registers, public practitioner threads and a fixed list of recognised analysts and technology press. Material either vendor publishes about itself stays in the record and is labelled as a claim.
What does this comparison of Symantec Endpoint Security and Trellix leave out?
Pricing, contract terms, notice periods, support commitments and the current scope of any certificate. None of those appear in a public register; they come from the vendor and belong in a negotiation record. Fit with your existing stack and your compliance scope is also absent, because it is a property of your organisation rather than of a endpoint security (edr and xdr) product.
Why does nexalign publish this instead of ranking Symantec Endpoint Security and Trellix?
Because a ranking would have to invent the buyer. Every quadrant and score sheet silently assumes a weighting that belongs to someone else's decision. nexalign publishes the record and keeps the weighting where it belongs, in DecisionOS, where it is set by the people who have to defend the outcome.
The full records
Symantec Endpoint Security: the full evidence record
38 items from 3 kinds of source
Trellix: the full evidence record
60 items from 5 kinds of source
Two records do not make a decision
Choosing between Symantec Endpoint Security and Trellix depends on which criteria matter to you, how heavily each one weighs, what your hard constraints are and who has to sign the result off. DecisionOS takes this same evidence pool, scores it against the criteria of your actual decision and produces a memo that holds up in front of a board and an auditor.